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[ CAS No. 917389-32-3 ] {[proInfo.proName]}

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Chemical Structure| 917389-32-3
Chemical Structure| 917389-32-3
Structure of 917389-32-3 * Storage: {[proInfo.prStorage]}
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Product Details of [ 917389-32-3 ]

CAS No. :917389-32-3 MDL No. :MFCD22572725
Formula : C29H28F4N4O4 Boiling Point : -
Linear Structure Formula :- InChI Key :FWYSMLBETOMXAG-QHCPKHFHSA-N
M.W : 572.55 Pubchem ID :45138674
Synonyms :
AIC246;MK-8228;Prevymis;MK-8828

Safety of [ 917389-32-3 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H302-H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 917389-32-3 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 917389-32-3 ]

[ 917389-32-3 ] Synthesis Path-Downstream   1~78

  • 1
  • [ 917389-30-1 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
96.4% With water; sodium hydrogencarbonate; sodium hydroxide In tert-butyl methyl ether Reflux; Large scale; 3b A mixture of (2S 3^-2,3-bis [(4-methylbenzoyl)oxy]succininc acid -{(45 8-fluoro-2-[4-(3- methoxyphenyl)piperazin- 1 -yl] -3 -[2-methoxy-5-(trifluoromethyl)phenyl] -3 ,4-dihydro- quinazolin-4-yl} acetic acid methyl ester (l :l-salt) (30,8 kg), sodium hydrogen carbonate (16.4 kg) and water (315 L) is stirred with MTBE (160 L). The phases obtained are separated and the organic phase is treated with 35 L of a 7% sodium hydrogen carbonate solution. The phases obtained are separated again and the organic phase is treated with 125 L of a 4% sodium hydroxide solution. The mixture is heated under reflux conditions. The solvent is distilled to run dry. The residual content of the reactor is stirred for further 5 h at 55 - 60°C. To the mixture MTBE (160 L) and water (65 L) is added under stirring at 22°C. The phases obtained are separated again and the organic phase is extracted with the aid of a 6% aqueous sodium chloride solution (30 L). The aqueous phases are reunited and stirred with water (25 L) and MTBE (160 L). The pH is adjusted to 6.5 with the aid of IN muriatic acid. The organic phase is separated, the solvent is gently distilled to run dry and the residue is dissolved in acetone (approximately 75 L). A change of the solvent is conducted towards acetone by means of 6 distillation steps of 130 L each. The product is subsequently precipitated by adding the residual solvent (approximately 60 L) under stirring conditions (61 rpm) in an excess of water (492 L) at room temperature. Followed by centrifugation, the isolated product is dried in a vacuum dryer equipped with a spiral crumbling roller at 40 to 80°C. By this procedure a yield of 16,5 kg of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazin- l-yl]-3-(2-memoxy-5-trifluormethylphenyl)-3,4-dihydroquina2olin-4-yl}acetic acid is obtained as amorphous compound corresponding to 96.4% in theory.1H NMR (300 MHz, d6-DMSO): δ = 7,53 (d,2J - 8,4, 1H), 7,41 (brs, 1H), 7,22 (d,2J = 8,5, 1H), 7,09-7,01 (m, 2H), 6,86 (m, 2H)56,45 (dd,2J = 8,2,3J = 1,8, 1H), 6,39-6,34 (m, 2H), 4,87 (t,2J= 7,3, 1H), 3,79 (brs, 3H), 3,68 (s, 3H), 3,50-3,38 (m, 4H), 2,96-2,75 (m, 5H), 2,45- 2,40 (m, 1H) ppm; MS (API-ES-neg.): m/z = 571 [(M-H), 100 %];
96.4% With water; sodium hydrogencarbonate; sodium hydroxide In tert-butyl methyl ether at 22℃; Reflux; Large scale; 6A Example 6A (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid A mixture of (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid-{(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid methyl ester (1:1 salt) (30.8 kg), sodium bicarbonate (16.4 kg), and water (315 l) is mixed with MTBE (160 l). The phases are separated and the organic phase is treated with 35 l of an approximately seven-percent aqueous solution of sodium bicarbonate. The phases are separated and the organic phase is added to 125 l of an approximately four-percent aqueous solution of sodium hydroxide. The reaction mixture is heated to reflux, the solution is evaporated to dryness, and the reactor contents are then agitated for an additional 5 h at 55-60° C. The reaction mixture is then added at approx. 22° C. to MTBE (160 l) and water (65 l) and agitated. The phases are separated and the organic phase is extracted with an approximately six-percent aqueous solution of sodium chloride (30 l). The combined aqueous phases are mixed with water (25 l) and MTBE (160 l) and the pH value is adjusted to approx. 6.5 with approx. 1 N of hydrochloric acid. The organic phase is separated, the solvent is evaporated to dryness, and the residue is dissolved in acetone (approx. 75 l). The solvent is changed to acetone (6 distillations with approx. 130 l each). The final product is then precipitated by adding water, isolated through centrifugation, and dried in a vacuum dryer. A total of 16.5 kg of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid is thus obtained as an amorphous solid, corresponding to 96.4% of theory. 1H NMR (300 MHz, d6-DMSO): δ=7.53 (d, 2J=8.4, 1H), 7.41 (brs, 1H), 7.22 (d, 2J=8.5, 1H), 7.09-7.01 (m, 2H), 6.86 (m, 2H), 6.45 (dd, 2J=8.2, 3J=1.8, 1H), 6.39-6.34 (m, 2H), 4.87 (t, 2J=7.3, 1H), 3.79 (brs, 3H), 3.68 (s, 3H), 3.50-3.38 (m, 4H), 2.96-2.75 (m, 5H), 2.45-2.40 (m, 1H) ppm; MS (API-ES-neg.): m/z=571 [(M+H), 100%];HPLC (Method 1): RT=15.1 min; HPLC (Method 2): 99.8% e.e.; Pd (ICP): <1 ppm.
96.4% With water; sodium hydrogencarbonate In tert-butyl methyl ether Large scale; 6A (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid A mixture of (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid-{(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid methyl ester (1:1 salt) (30.8 kg), sodium bicarbonate (16.4 kg), and water (315 l) is mixed with MTBE (160 l). The phases are separated and the organic phase is treated with 35 l of an approximately seven-percent aqueous solution of sodium bicarbonate. The phases are separated and the organic phase is added to 125 l of an approximately four-percent aqueous solution of sodium hydroxide. The reaction mixture is heated to reflux, the solution is evaporated to dryness, and the reactor contents are then agitated for an additional 5 h at 55-60° C. The reaction mixture is then added at approx. 22° C. to MTBE (160 l) and water (65 l) and agitated. The phases are separated and the organic phase is extracted with an approximately six-percent aqueous solution of sodium chloride (30 l). The combined aqueous phases are mixed with water (25 l) and MTBE (160 l) and the pH value is adjusted to approx. 6.5 with approx. 1 N of hydrochloric acid. The organic phase is separated out, the solvent is evaporated to dryness, and the residue is dissolved in acetone (approx. 75 l). The solvent is changed to acetone (6 distillations with approx. 130 l each). The final product is then precipitated by adding water, isolated through centrifugation, and dried in a vacuum dryer. A total of 16.5 kg of (S)-[8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl]acetic acid is thus obtained as an amorphous solid, corresponding to 96.4% of theory. 1H NMR (300 MHz, d6-DMSO): δ=7.53 (d, 2J=8.4, 1H), 7.41 (brs, 1H), 7.22 (d, 2J=8.5, 1H), 7.09-7.01 (m, 2H), 6.86 (m, 2H), 6.45 (dd, 2J=8.2, 3J=1.8, 1H), 6.39-6.34 (m, 2H), 4.87 (t, 2J=7.3, 1H), 3.79 (brs, 3H), 3.68 (s, 3H), 3.50-3.38 (m, 4H), 2.96-2.75 (m, 5H), 2.45-2.40 (m, 1H) ppm; MS (API-ES-neg.): m/z=571 [(M+H), 100%];
92% Stage #1: (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid {(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-(2-methoxy-5-(trifluormethyl)phenyl)-3,4-dihydroquinazolin-4-yl}acetic acid methyl ester With sodium phosphate dibasic dihydrate In tert-butyl methyl ether; water at 20℃; for 0.666667h; Stage #2: With potassium hydroxide In methanol; tert-butyl methyl ether; water at 50℃; for 6h; Stage #3: With hydrogenchloride In tert-butyl methyl ether; water 6 Preparation of Compound A To a slurry of compound 7 (20g, 18.9 mmol) in MTBE (40.0 mL) at room temperature was added a solution of sodium phosphate dibasic dihydrate (8.42 g, 47.3 mmol) in water (80 mL) and the resulting slurry was allowed to stir at room temperature for 40 minutes. The reaction mixture was transferred to a separatory funnel and the organic phase was collected and washed with a solution of sodium phosphate dibasic dihydrate (3.37 g, 18.91 mmol) in water (40.0 mL). A solution of KOH (4.99 g, 76 mmol) in water (80 mL) and methanol (10.00 mL) was then added to the organic phase and the resulting mixture was heated to 50 °C and allowed to stir at this temperature for 6 hours. MTBE (20 mL) and water (40 mL) were then added to the reaction mixture and the resulting solution was transferred to a separatory funnel and the aqueous layer was collected and washed with MTBE (20 mL). Additional MTBE (40 mL) was added to the aqueous layer and the resulting solution was adjusted to pH 4-5 via slow addition of concentrated HCl. The resulting acidified solution was transferred to a separatory funnel and the organic phase was collected, concentrated in vacuo and solvent switched with acetone, maintaining a 30 mL volume. The resulting acetone solution was added dropwise to water and the precipitate formed was filtered to provide compound A as a white solid (10 g, 92%). 1H NMR (500 MHz, d6-DMSO): δΗ 12.6 (1H, s), 7.52 (1H, dd, J= 8.6, 1.3 Hz), 7.41 (1H, brs), 7.22 (1H, d, J= 7.2 Hz), 7.08-7.02 (2H, m), 6.87-6.84 (2H, m), 6.44 (1H, dd, J= 8.3, 1.8 Hz), 6.39 (1H, t, J= 2.1 Hz), 6.35 (1H, dd, J= 8.1, 2.0 Hz), 4.89 (1H, t, J= 7.3 Hz), 3.79 (3H, br s), 3.68 (3H, s), 3.47 (2H, br s), 3.39 (2H, br s), 2.96-2.93 (2H, m), 2.82-2.77 (3H, m), 2.44 (1H, dd, J = 14.8, 7.4 Hz).
81.2% Stage #1: (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid {(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-(2-methoxy-5-(trifluormethyl)phenyl)-3,4-dihydroquinazolin-4-yl}acetic acid methyl ester With water; sodium hydrogencarbonate In ethyl acetate Stage #2: With sodium hydroxide; water In 1,4-dioxane at 20℃; for 3 - 18h; Stage #3: With hydrogenchloride; water In 1,4-dioxane; isobutyl methyl ether

  • 2
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
  • [ 791116-51-3 ]
YieldReaction ConditionsOperation in experiment
98.7% Stage #1: (R)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetic acid; (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)-phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetic acid With methanol; sodium methylate In acetonitrile for 77h; Heating / reflux; Stage #2: With hydrogenchloride; water In 4-methyl-2-pentanone; acetonitrile
  • 3
  • [ 917389-34-5 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
14.6 % ee Stage #1: (R)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate With water; sodium hydrogencarbonate In ethyl acetate Stage #2: With sodium hydroxide; water In 1,4-dioxane at 20℃; for 18h; Stage #3: With hydrogenchloride; water In isobutyl methyl ether
  • 4
  • C19H16F4N2O4 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / Reflux 2: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / Reflux 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 4: ethyl acetate / 20 °C 5: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 4 steps 1.1: phosphorus pentachloride; α-picoline / toluene / 4 h / 40 °C 2.1: sodium dihydrogenphosphate / toluene; water / 1 h / 20 °C 2.2: 1 h / 0 - 20 °C 3.1: potassium phosphate / toluene; water / 1 h / 20 °C 3.2: 0 °C 3.3: 12 h / 20 °C 4.1: sodium phosphate dibasic dihydrate / water; tert-butyl methyl ether / 0.67 h / 20 °C 4.2: 6 h / 50 °C 4.3: pH 4 - 5
  • 5
  • [ 917389-21-0 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / Reflux 2: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 3: ethyl acetate / 20 °C 4: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 3 steps 1.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 1.2: 9 h / Reflux; Large scale 2.1: ethyl acetate / 1 h / 20 °C / Large scale 2.2: 72 h / 20 °C / Large scale 3.1: sodium hydrogencarbonate / water; tert-butyl methyl ether / Large scale 3.2: Reflux; Large scale
Multi-step reaction with 4 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 12 h / Reflux; Large scale 2: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 3: ethyl acetate / 76 h / 0 - 20 °C / Large scale 4: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 2 steps 1.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 1.2: 9 h / Reflux; Large scale 1.3: Large scale 2.1: sodium hydrogencarbonate; water / tert-butyl methyl ether / Large scale
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 3 - 18 h / 20 °C 4.3: pH 7.0 - 7.5
Multi-step reaction with 5 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 3.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 4.1: sulfuric acid / 26 h / Heating / reflux 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 18 h / 20 °C 5.3: pH 7 - 14

  • 6
  • methyl 2-[2-chloro-8-fluoro-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazolin-4-yl]acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 2: ethyl acetate / 20 °C 3: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 3 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 2: ethyl acetate / 76 h / 0 - 20 °C / Large scale 3: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 3 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 2.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 3 - 18 h / 20 °C 3.3: pH 7.0 - 7.5
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 2.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 3.1: sulfuric acid / 26 h / Heating / reflux 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14

  • 7
  • [ 348-54-9 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1: acetonitrile / Reflux 2: acetic acid; palladium diacetate 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / Reflux 4: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / Reflux 5: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 6: ethyl acetate / 20 °C 7: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 6 steps 1.1: acetonitrile / 4 h / Reflux; Large scale 2.1: acetic acid; sulfuric acid; sulfur trioxide; palladium diacetate; oxygen / 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 4.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 4.2: 9 h / Reflux; Large scale 5.1: ethyl acetate / 1 h / 20 °C / Large scale 5.2: 72 h / 20 °C / Large scale 6.1: sodium hydrogencarbonate / water; tert-butyl methyl ether / Large scale 6.2: Reflux; Large scale
Multi-step reaction with 7 steps 1.1: acetonitrile / 7.25 h / 0 °C / Reflux; Large scale 2.1: acetic acid / Inert atmosphere; Large scale 2.2: 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 55 °C / Reflux; Large scale 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 12 h / Reflux; Large scale 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 6.1: ethyl acetate / 76 h / 0 - 20 °C / Large scale 7.1: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 5 steps 1.1: acetonitrile / 4 h / Reflux; Large scale 2.1: palladium diacetate; fuming sulphuric acid; acetic acid / 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 4.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 4.2: 9 h / Reflux; Large scale 4.3: Large scale 5.1: sodium hydrogencarbonate; water / tert-butyl methyl ether / Large scale
Multi-step reaction with 7 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 3 - 18 h / 20 °C 7.3: pH 7.0 - 7.5
Multi-step reaction with 8 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 7.1: sulfuric acid / 26 h / Heating / reflux 8.1: water; sodium hydrogencarbonate / ethyl acetate 8.2: 18 h / 20 °C 8.3: pH 7 - 14

  • 8
  • [ 16588-75-3 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1: acetonitrile / Reflux 2: acetic acid; palladium diacetate 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / Reflux 4: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / Reflux 5: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 6: ethyl acetate / 20 °C 7: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 6 steps 1.1: acetonitrile / 4 h / Reflux; Large scale 2.1: acetic acid; sulfuric acid; sulfur trioxide; palladium diacetate; oxygen / 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 4.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 4.2: 9 h / Reflux; Large scale 5.1: ethyl acetate / 1 h / 20 °C / Large scale 5.2: 72 h / 20 °C / Large scale 6.1: sodium hydrogencarbonate / water; tert-butyl methyl ether / Large scale 6.2: Reflux; Large scale
Multi-step reaction with 7 steps 1.1: acetonitrile / 7.25 h / 0 °C / Reflux; Large scale 2.1: acetic acid / Inert atmosphere; Large scale 2.2: 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 55 °C / Reflux; Large scale 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 12 h / Reflux; Large scale 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 6.1: ethyl acetate / 76 h / 0 - 20 °C / Large scale 7.1: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 5 steps 1.1: acetonitrile / 4 h / Reflux; Large scale 2.1: palladium diacetate; fuming sulphuric acid; acetic acid / 20 h / 20 °C / Inert atmosphere; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 4.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 4.2: 9 h / Reflux; Large scale 4.3: Large scale 5.1: sodium hydrogencarbonate; water / tert-butyl methyl ether / Large scale
Multi-step reaction with 6 steps 1.1: acetonitrile / 38 - 45 h / 35 - 88 °C 2.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 3 - 18 h / 20 °C 6.3: pH 7.0 - 7.5
Multi-step reaction with 7 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 3 - 18 h / 20 °C 7.3: pH 7.0 - 7.5
Multi-step reaction with 7 steps 1.1: acetonitrile / 38 - 45 h / 35 - 88 °C 2.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 6.1: sulfuric acid / 26 h / Heating / reflux 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 18 h / 20 °C 7.3: pH 7 - 14
Multi-step reaction with 8 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 7.1: sulfuric acid / 26 h / Heating / reflux 8.1: water; sodium hydrogencarbonate / ethyl acetate 8.2: 18 h / 20 °C 8.3: pH 7 - 14

  • 9
  • [ 917389-24-3 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1: acetic acid; palladium diacetate 2: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / Reflux 3: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / Reflux 4: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / Reflux 5: ethyl acetate / 20 °C 6: sodium hydrogencarbonate; sodium hydroxide; water / tert-butyl methyl ether / Reflux; Large scale
Multi-step reaction with 5 steps 1.1: acetic acid; sulfuric acid; sulfur trioxide; palladium diacetate; oxygen / 20 h / 20 °C / Inert atmosphere; Large scale 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 3.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 3.2: 9 h / Reflux; Large scale 4.1: ethyl acetate / 1 h / 20 °C / Large scale 4.2: 72 h / 20 °C / Large scale 5.1: sodium hydrogencarbonate / water; tert-butyl methyl ether / Large scale 5.2: Reflux; Large scale
Multi-step reaction with 6 steps 1.1: acetic acid / Inert atmosphere; Large scale 1.2: 20 h / 20 °C / Inert atmosphere; Large scale 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 55 °C / Reflux; Large scale 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 12 h / Reflux; Large scale 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 5.1: ethyl acetate / 76 h / 0 - 20 °C / Large scale 6.1: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 4 steps 1.1: palladium diacetate; fuming sulphuric acid; acetic acid / 20 h / 20 °C / Inert atmosphere; Large scale 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 3.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 3.2: 9 h / Reflux; Large scale 3.3: Large scale 4.1: sodium hydrogencarbonate; water / tert-butyl methyl ether / Large scale
Multi-step reaction with 6 steps 1.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 3 - 18 h / 20 °C 6.3: pH 7.0 - 7.5
Multi-step reaction with 7 steps 1.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 6.1: sulfuric acid / 26 h / Heating / reflux 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 18 h / 20 °C 7.3: pH 7 - 14

  • 10
  • [ 917389-32-3 ]
  • monosodium salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid [ No CAS ]
YieldReaction ConditionsOperation in experiment
86% With sodium hydroxide In ethanol; di-isopropyl ether at 50℃; for 3.41667h; B.1 Monosodium salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid Example 1 Monosodium salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid 333.1 g of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid (Example 6A) are dissolved in 1300 ml of a mixture of ethanol and diisopropyl ether (1:1) in a 2000 ml three-neck flask. 21.9 g (546.84 mmol) of NaOH are added as a solid to the solution. The mixture is heated for 25 min. to an inner temperature of 50° C., and this yields a clear orange-coloured solution. The solution thus obtained is stirred for 3 hours at this temperature, and a thin suspension is formed already after 1 hour. The reaction mixture is then cooled down for 10 hours at a cooling rate of 3° C./hour to an inner temperature of 20° C. and then stirred for a further 5 hours at this temperature. The total volume of the reaction mixture is reduced under vacuum to approximately 750 ml and the suspension obtained in this way is stirred at 20° C. for 2 hours. Next, 250 ml diisopropyl ether is added over a period of 10 min. to the reaction mixture obtained and the mixture is stirred for further 2 hours. The crystalline product which is obtained is vacuumed off by a suction device, washed 2* with in each case 250 ml diisopropyl ether, and dried in a vacuum drying cabinet for 20 hours at 20° C. and 160 mbar. The crystalline solid obtained in this way is then dried for 10 min. at 90° C. in an IR dryer and then again for further 16 hours at 60° C. in the vacuum drying cabinet. In this way a total of 274.4 g (86% of the theoretical yield) of the desired crystalline sodium salt is obtained.
  • 11
  • methyl-(2Z)-3-[3-fluoro-2-([2-methoxy-5-(trifluoromethyl)phenyl]carbamoyl}amino)-phenyl]acrylate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 2.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 2.2: 9 h / Reflux; Large scale 3.1: ethyl acetate / 1 h / 20 °C / Large scale 3.2: 72 h / 20 °C / Large scale 4.1: sodium hydrogencarbonate / water; tert-butyl methyl ether / Large scale 4.2: Reflux; Large scale
Multi-step reaction with 5 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 55 °C / Reflux; Large scale 2: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 12 h / Reflux; Large scale 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 4 h / Reflux; Large scale 4: ethyl acetate / 76 h / 0 - 20 °C / Large scale 5: sodium hydrogencarbonate; water; sodium hydroxide / tert-butyl methyl ether / 22 °C / Reflux; Large scale
Multi-step reaction with 3 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / Reflux; Large scale 2.1: trichlorophosphate / chlorobenzene / 3 h / Reflux; Large scale 2.2: 9 h / Reflux; Large scale 2.3: Large scale 3.1: sodium hydrogencarbonate; water / tert-butyl methyl ether / Large scale
  • 12
  • (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid-{(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}methyl acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
96.4% Stage #1: (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid-{(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}methyl acetate With sodium hydrogencarbonate In tert-butyl methyl ether; water Large scale; Stage #2: With water; sodium hydroxide In tert-butyl methyl ether Reflux; Large scale; A.6A Example 6A (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethyl-phenyl)-3,4-dihydroquinazoline-4-yl}acetic acid Example 6A (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethyl-phenyl)-3,4-dihydroquinazoline-4-yl}acetic acid A mixture of (2S,3S)-2,3-bis[(4-methylbenzoyl)oxy]succinic acid-{(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid methyl ester (1:1 salt) (30.8 kg), sodium bicarbonate (16.4 kg), and water (315 l) is mixed with MTBE (160 l). The phases are separated and the organic phase is treated with 35 l of an approximately seven-percent aqueous solution of sodium bicarbonate. The phases are separated and the organic phase is added to 125 l of an approximately four-percent aqueous solution of sodium hydroxide. The reaction mixture is heated to reflux, the solution is evaporated to dryness, and the reactor contents are then agitated for an additional 5 h at 55-60° C. The reaction mixture is then added at approx. 22° C. to MTBE (160 l) and water (65 l) and agitated. The phases are separated and the organic phase is extracted with an approximately six-percent aqueous solution of sodium chloride (30 l). The combined aqueous phases are mixed with water (25 l) and MTBE (160 l) and the pH value is adjusted to approx. 6.5 with approx. 1 N of hydrochloric acid. The organic phase is separated, the solvent is evaporated to dryness, and the residue is dissolved in acetone (approx. 75 l). The solvent is changed to acetone (6 distillations with approx. 130 l each). The final product is then precipitated by adding water, isolated through centrifugation, and dried in a vacuum dryer. A total of 16.5 kg of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid is thus obtained as an amorphous solid, corresponding to 96.4% of theory. 1H NMR (300 MHz, d6-DMSO): δ=7.53 (d, 2J=8.4, 1H), 7.41 (brs, 1H), 7.22 (d, 2J=8.5, 1H), 7.09-7.01 (m, 2H), 6.86 (m, 2H), 6.45 (dd, 2J=8.2, 3J=1.8, 1H), 6.39-6.34 (m, 2H), 4.87 (t, 2J=7.3, 1H), 3.79 (brs, 3H), 3.68 (s, 3H), 3.50-3.38 (m, 4H), 2.96-2.75 (m, 5H), 2.45-2.40 (m, 1H) ppm; MS (API-ES-neg.): m/z=571 [(M+H), 100%]; HPLC (Method 1): RT=15.1 min; [0139] HPLC (Method 2): 99.8% e.e.; Pd (ICP): <1 ppm.
  • 13
  • [ 917389-32-3 ]
  • calcium saltof {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid [ No CAS ]
YieldReaction ConditionsOperation in experiment
68.5% With calcium hydroxide In ethanol at 50℃; for 3.41667h; 3 Example 3 Production of the 2,5 hydrate of the calcium salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid Example 3 Production of the 2,5 hydrate of the calcium salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid [0151] 10 g of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid (Example 6A) are dissolved in 45 ml of ethanol in a 50 ml three-neck flask and 1.294 g Ca(OH2) are added as a solid in the form of a powder to the solution obtained. The resulting suspension is heated for 25 min. to 50° C. and then stirred for 3 hours at this temperature. 62.6 g of water are added to the suspension obtained in this way and the resulting solution is cooled to 0° C. Previously produced seed crystals are added to the solution thus obtained and the suspension, which contains a partially oily product, is heated to room temperature and allowed to remain at room temperature for 72 hours. The suspension thus obtained is again cooled to 0° C. and then stirred for 2 h at this temperature. The crystalline product that is obtained is filtered off and washed 2× with in each case 15 ml of a 1:1 mixture of ethanol and water and then dried at 50° C. and 160 mbar in the vacuum drying cabinet. Altogether 7.4 g (68.5% of the theoretical yield) of the salt is obtained as a crystalline solid. [0152] Using the crystalline solid obtained in Example 3 an X-ray powder diffractogram (XRD), which is shown in FIG. 2, was recorded under the same conditions as those mentioned in Example 2.
  • 14
  • [ 917389-32-3 ]
  • [ 98-11-3 ]
  • (S)-(+)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid besylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
81.4% In water; acetone at 0 - 40℃; 1 Example 1 Besylate salt of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid 235.00 g (0.41 mol) of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy- -5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid (Example 6A) are dissolved in 1645 ml of acetone and 16.45 ml of water is added to the resulting mixture. The resulting yellowish solution is filtered and 64.92 g (0.41 mol) of benzenesulfonic acid as a solid is added portion by portion. The resulting solution is heated to about 40° C. and suitable seed crystals are added at this temperature. The resulting solution is cooled down to room temperature under stirring and the resulting suspension is cooled to 0-5° C. and stirred for an additional 2 hours at that temperature. The resulting solid is filtered, washed 2 with acetone (100 ml, 0° C.) and dried at 60° C. to constant weight. This process yields a total of 243.87 g (81.4% of the theoretic quantity) of the target compound.[0145] From the crystalline solid obtained in Example 1, an X-ray powder diffractogram (XRD) was recorded with a Siemens Powder Diffractometer D5000 that is shown in FIG. 1, under the following conditions.[0146] The peak lists for the salt obtained in Example 1 as well as for the salt obtained in Example 2 are shown in Table 2.[0147] Measuring Conditions[0148] Copper anode (wavelength 1.5418 Å)[0149] Voltage: 4000 V, Current: 30 mA[0150] Secondary graphite monochromator,[0151] variable (theta-dependent) divergence and anti-diffusion shield[0152] Detector aperture: 0.2 mm[0153] 6 10 mm effective sample surface[0154] Scanning 0.02° (2 theta), 2 sec.
  • 15
  • [ 917389-32-3 ]
  • (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid monosulfate [ No CAS ]
YieldReaction ConditionsOperation in experiment
With sulfuric acid In water at 20℃; for 168h; Crystallization Experiments General procedure: Crystallization experiments to find a suitable crystalline salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluor- omethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid were conducted. The crystallization experiments were based on (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid and the respective acid either by slurrification in the individually specified solvent for one week at 20° C. or by crystallization through cooling/evaporation of a solution that was kept at 50° C. for 4 hours, followed by slow cooling to 20° C. at a ratio of 3° C./hour.[0141] The results of the crystallization experiments are given in Table 1 below where the abbreviation API denotes (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid. "API" is the acronym for "active pharmaceutical ingredient".
  • 16
  • [ 917389-32-3 ]
  • (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid dihydrochloride [ No CAS ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride In water at 20℃; for 168h; Crystallization Experiments General procedure: Crystallization experiments to find a suitable crystalline salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluor- omethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid were conducted. The crystallization experiments were based on (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid and the respective acid either by slurrification in the individually specified solvent for one week at 20° C. or by crystallization through cooling/evaporation of a solution that was kept at 50° C. for 4 hours, followed by slow cooling to 20° C. at a ratio of 3° C./hour.[0141] The results of the crystallization experiments are given in Table 1 below where the abbreviation API denotes (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid. "API" is the acronym for "active pharmaceutical ingredient".
  • 17
  • [ 917389-32-3 ]
  • (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid monophosphate [ No CAS ]
YieldReaction ConditionsOperation in experiment
With phosphoric acid In water at 20℃; for 168h; Crystallization Experiments General procedure: Crystallization experiments to find a suitable crystalline salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluor- omethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid were conducted. The crystallization experiments were based on (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid and the respective acid either by slurrification in the individually specified solvent for one week at 20° C. or by crystallization through cooling/evaporation of a solution that was kept at 50° C. for 4 hours, followed by slow cooling to 20° C. at a ratio of 3° C./hour.[0141] The results of the crystallization experiments are given in Table 1 below where the abbreviation API denotes (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid. "API" is the acronym for "active pharmaceutical ingredient".
  • 18
  • [ 917389-32-3 ]
  • [ 104-15-4 ]
  • (S)-(+)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid tosylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
79.3% In water; acetone at 0 - 36℃; 2 Example 2 Tosylate salt of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid 235.00 g (0.41 mol) of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid (Example 6A) are dissolved in 1645 ml of acetone and 16.45 ml of water is added to the solution. The resulting yellowish solution is filtered and 78.07 g (0.41 mol) of solid p-toluenesulfonic acid monohydrate are added portion by portion at about 36° C. The solution is cooled down to room temperature under stirring and the resulting suspension is then cooled to 0-5° C. and stirred for an additional 2 hours at that temperature. The solid material is separated, washed 2 with acetone (100 ml, 0° C.) and dried at 60° C. to constant weight. This process yielded a total of 248.11 g (79.3% of the theoretic quantity) of the desired final product.[0156] From the crystalline solid material obtained in Example 2 an X-ray powder diffractogram (XRD), shown in FIG. 2, was recorded under the same conditions as for Example 1.
  • 19
  • [ 917389-32-3 ]
  • [ 77-92-9 ]
  • (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-(2-methoxy-5-trifluoromethylphenyl)-3,4-dihydroquinazoline-4-yl}acetic acid monocitrate [ No CAS ]
YieldReaction ConditionsOperation in experiment
In water at 20℃; for 168h; Crystallization Experiments General procedure: Crystallization experiments to find a suitable crystalline salt of {8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trifluor- omethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid were conducted. The crystallization experiments were based on (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid and the respective acid either by slurrification in the individually specified solvent for one week at 20° C. or by crystallization through cooling/evaporation of a solution that was kept at 50° C. for 4 hours, followed by slow cooling to 20° C. at a ratio of 3° C./hour.[0141] The results of the crystallization experiments are given in Table 1 below where the abbreviation API denotes (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5-(trif- luoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid. "API" is the acronym for "active pharmaceutical ingredient".
  • 20
  • C19H14F4N2O3 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium dihydrogenphosphate / toluene; water / 1 h / 20 °C 1.2: 1 h / 0 - 20 °C 2.1: potassium phosphate / toluene; water / 1 h / 20 °C 2.2: 0 °C 2.3: 12 h / 20 °C 3.1: sodium phosphate dibasic dihydrate / water; tert-butyl methyl ether / 0.67 h / 20 °C 3.2: 6 h / 50 °C 3.3: pH 4 - 5
  • 22
  • C17H14FNO4 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: dmap / Isopropyl acetate / 5 h / Reflux 2.1: phosphorus pentachloride; α-picoline / toluene / 4 h / 40 °C 3.1: sodium dihydrogenphosphate / toluene; water / 1 h / 20 °C 3.2: 1 h / 0 - 20 °C 4.1: potassium phosphate / toluene; water / 1 h / 20 °C 4.2: 0 °C 4.3: 12 h / 20 °C 5.1: sodium phosphate dibasic dihydrate / water; tert-butyl methyl ether / 0.67 h / 20 °C 5.2: 6 h / 50 °C 5.3: pH 4 - 5
  • 23
  • [ 917389-32-3 ]
  • C29H26(2)H2F4N4O4 [ No CAS ]
YieldReaction ConditionsOperation in experiment
With 2,6-(2,6-<SUP>i</SUP>Pr<SUB>2</SUB>-C<SUB>6</SUB>H<SUB>3</SUB>-4,5-H<SUB>2</SUB>-imidazol-2-ylidene)<SUB>2</SUB>C<SUB>5</SUB>H<SUB>3</SUB>NFe(N<SUB>2</SUB>)<SUB>2</SUB>; deuterium In tetrahydrofuran at 45℃; for 24h;
  • 24
  • [ 917389-21-0 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: trichlorophosphate; N-ethyl-N,N-diisopropylamine / 16 h / 120 °C / Inert atmosphere 2: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 3 h / 130 °C / Microwave irradiation 3: sodium hydroxide; water / 1,4-dioxane / 20 °C
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14
  • 25
  • methyl 2-[2-chloro-8-fluoro-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazolin-4-yl]acetate [ No CAS ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 3 h / 130 °C / Microwave irradiation 2: sodium hydroxide; water / 1,4-dioxane / 20 °C
Multi-step reaction with 3 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 2.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 18 h / 20 °C 3.3: pH 7 - 14
  • 26
  • [ 791117-40-3 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
62.2 mg With water; sodium hydroxide In 1,4-dioxane at 20℃; 1.5 (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3- methoxyphenyl)piperazin-l-yl)-3,4-dihydroquinazolin-4-yl)acetic acid [00190] To a solution of methyl 2-[8-fluoro-3-[2-methoxy-5-(trifluoromethyl)phenyl]-2- [4-(3-methoxyphenyl)piperazin-l-yl]-3,4-dihydroquinazolin-4-yl]acetate (5, 600 mg) in dioxane (5 mL ) was added 1 mol/L NaOH (2.5 mL) and the mixture was stirred for 1 overnight at room-temperature and was monitored by LCMS. The reaction mixture was adjusted pH to 3 with 1 mol/L HC1 and extracted with 3 x 5 mL of ethyl acetate. The organic layers were combined and dried over anhydrous sodium, filtered and concentrated under vacuum. The crude product was purified by Prep-SFC with the following conditions: Column, Chiralpak OD-H, 20*250mm, 20um; mobile phase, CO2(70%), methanol(30%); Detector, UV 254 nm to afford 62.2 mg of the product as a light yellow solid. NMR (300 MHz, CDCh) δ: 7.69 - 6.31 (m , 10 H), 4.93 - 4.88 (m, 1 H), 3.74 (s, 6 H), 3.66 - 2.62 (m, 10 H). LC-MS: m/z = 573.15 [M+l]+.
Multi-step reaction with 2 steps 1.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 2.1: water; sodium hydrogencarbonate / ethyl acetate 2.2: 18 h / 20 °C 2.3: pH 7 - 14
  • 27
  • [ 65896-11-9 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
  • 28
  • [ 349-65-5 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
  • 29
  • [ 917389-23-2 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: triethylamine; dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / acetonitrile / 2 h / 110 °C / Microwave irradiation 2: trichlorophosphate; N-ethyl-N,N-diisopropylamine / 16 h / 120 °C / Inert atmosphere 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane / 3 h / 130 °C / Microwave irradiation 4: sodium hydroxide; water / 1,4-dioxane / 20 °C
Multi-step reaction with 5 steps 1.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 18 h / 20 °C 5.3: pH 7 - 14
  • 30
  • C30H29BrF4N4O4 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
  • 31
  • methyl-(2E)-3-(3-fluoro-2-((((2-methoxy-5-(trifluoromethyl)phenyl)amino)(4-(3-methoxyphenyl)-piperazin-1-yl)methylene)amino)phenyl)acrylate 2-hydrobenzoate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: potassium phosphate / toluene; water / 1 h / 45 °C 1.2: 5 h / 0 °C 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
  • 32
  • C30H30F4N4O4 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
  • 33
  • [ 690664-20-1 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: disodium hydrogenphosphate / water; Isopropyl acetate / 14 h / 20 - 60 °C / Inert atmosphere; Large scale 2.1: dmap / Isopropyl acetate / 5 h / Inert atmosphere; Reflux; Large scale 3.1: potassium phosphate; C29H34N3O6(1+)*Br(1-) / toluene; water / Inert atmosphere 4.1: phosphorus pentachloride / 2,2,2-trifluoroethanol / Inert atmosphere 5.1: toluene / 45 °C / Inert atmosphere 6.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 6.2: 5 h / 60 °C / Inert atmosphere
Multi-step reaction with 7 steps 1.1: disodium hydrogenphosphate / water; Isopropyl acetate / 14 h / 20 - 60 °C / Inert atmosphere; Large scale 2.1: dmap / Isopropyl acetate / 5 h / Inert atmosphere; Reflux; Large scale 3.1: phosphorus pentachloride; α-picoline / toluene / 5 h / 20 - 40 °C / Inert atmosphere; Large scale 4.1: triethylamine / toluene; water / 1.5 h / 20 - 40 °C / Inert atmosphere; Large scale 4.2: 3 h / 0 °C / Large scale 5.1: potassium phosphate / toluene; water / 1 h / 45 °C 5.2: 5 h / 0 °C 6.1: toluene / 45 °C / Inert atmosphere 7.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 7.2: 5 h / 60 °C / Inert atmosphere
  • 34
  • methyl (2E)-3-(3-fluoro-2-((phenoxycarbonyl)amino)-phenyl)acrylate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: dmap / Isopropyl acetate / 5 h / Inert atmosphere; Reflux; Large scale 2.1: potassium phosphate; C29H34N3O6(1+)*Br(1-) / toluene; water / Inert atmosphere 3.1: phosphorus pentachloride / 2,2,2-trifluoroethanol / Inert atmosphere 4.1: toluene / 45 °C / Inert atmosphere 5.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 5.2: 5 h / 60 °C / Inert atmosphere
Multi-step reaction with 6 steps 1.1: dmap / Isopropyl acetate / 5 h / Inert atmosphere; Reflux; Large scale 2.1: phosphorus pentachloride; α-picoline / toluene / 5 h / 20 - 40 °C / Inert atmosphere; Large scale 3.1: triethylamine / toluene; water / 1.5 h / 20 - 40 °C / Inert atmosphere; Large scale 3.2: 3 h / 0 °C / Large scale 4.1: potassium phosphate / toluene; water / 1 h / 45 °C 4.2: 5 h / 0 °C 5.1: toluene / 45 °C / Inert atmosphere 6.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 6.2: 5 h / 60 °C / Inert atmosphere
  • 35
  • methyl (2E)-3-(3-fluoro-2-((((2-methoxy-5-(trifluoromethyl)phenyl)imino)methylene)amino)phenyl)acrylate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: triethylamine / toluene; water / 1.5 h / 20 - 40 °C / Inert atmosphere; Large scale 1.2: 3 h / 0 °C / Large scale 2.1: potassium phosphate / toluene; water / 1 h / 45 °C 2.2: 5 h / 0 °C 3.1: toluene / 45 °C / Inert atmosphere 4.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 4.2: 5 h / 60 °C / Inert atmosphere
  • 36
  • 1-(3-methoxyphenyl)piperazine dihydrochloride [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: disodium hydrogenphosphate / water; Isopropyl acetate / Inert atmosphere 1.2: Inert atmosphere 2.1: phosphorus pentachloride / acetonitrile 3.1: potassium hexamethylsilazane / N,N-dimethyl acetamide / 60 °C / Inert atmosphere 4.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 5.1: toluene / 45 °C / Inert atmosphere 6.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 6.2: 5 h / 60 °C / Inert atmosphere
  • 37
  • C30H28F4N4O4 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: hydrogen; titanium(IV) isopropylate; bis(norbornadiene)rhodium(l)tetrafluoroborate; (S)-(+)-(3,5-dioxa-4-phosphacyclohepta[2,1-a:3,4-a']-dinaphthalen-4-yl)piperidine / 2-methyltetrahydrofuran / 40 °C / 25858.1 Torr 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
  • 38
  • methyl (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-4-yl)acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: phosphorus pentachloride / 2,2,2-trifluoroethanol / Inert atmosphere 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
Multi-step reaction with 2 steps 1.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 1.2: 24 h / 100 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
  • 39
  • (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate (2S,3S)-2,3-bis((4-methylbenzoyl)oxy)succinate ethyl acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
94% Stage #1: (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate (2S,3S)-2,3-bis((4-methylbenzoyl)oxy)succinate ethyl acetate With disodium hydrogenphosphate; tert-butyl methyl ether In water for 2h; Stage #2: With sodium hydroxide In water at 60℃; for 5h; Inert atmosphere;
92% Stage #1: (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate (2S,3S)-2,3-bis((4-methylbenzoyl)oxy)succinate ethyl acetate With sodium phosphate dibasic dihydrate; water In tert-butyl methyl ether at 20℃; for 0.666667h; Stage #2: With water; potassium hydroxide In methanol; tert-butyl methyl ether at 50℃; for 6h; Preparation of Compound A To a slurry of compound 7 (20g, 18.9 mmol) in MTBE (40 mL) at room temperature was added a solution of sodium phosphate dibasic dihydrate (8.42 g, 47.3 mmol) in water (80 mL) and the resulting slurry was allowed to stir at room temperature for 40 minutes. The reaction mixture was transferred to a separatory funnel and the organic phase was collected and washed with a solution of sodium phosphate dibasic dihydrate (3.37 g, 18.91 mmol) in water (40 mL). A solution of KOH (4.99 g, 76 mmol) in water (80 mL) and methanol (10 mL) was then added to the organic phase and the resulting mixture was heated to 50°C and allowed to stir at this temperature for 6 hours. MTBE (20 mL) and water (40 mL) were then added to the reaction mixture and the resulting solution was transferred to a separatory funnel and the aqueous layer was collected and washed with MTBE (20 mL). Additional MTBE (40 mL) was added to the aqueous layer and the resulting solution was adjusted to pH 4-5 via slow addition of concentrated HCl. The resulting acidified solution was transferred to a separatory funnel and the organic phase was collected, concentrated in vacuo and solvent switched with acetone, maintaining a 30 mL volume. The resultingacetone solution was added dropwise to water and the precipitate formed was filtered toprovide compound A as a white solid (10 g, 92%). 1H NMR (500 MHz, d6-DMSO): δH 12.6(1H, s), 7.52 (1H, dd, J= 8.6, 1.3 Hz), 7.41 (1H, brs), 7.22 (1H, d, J 7.2 Hz), 7.08-7.02 (2H,m), 6.87-6. 84 (2H, m), 6.44 (1H, dd, J 8.3, 1.8 Hz), 6.39 (1H, t, J 2.1 Hz), 6.35 (1H, dd, J= 8.1, 2.0 Hz), 4.89 (1H, t, J= 7.3 Hz), 3.79 (3H, br s), 3.68 (3H, s), 3.47 (2H, br s), 3.39(2H, br s), 2.96-2.93 (2H, m), 2. 82-2.77 (3H, m), 2.44 (1H, dd, J= 14.8, 7.4 Hz).
  • 40
  • [ 917389-26-5 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: potassium phosphate; C29H34N3O6(1+)*Br(1-) / toluene; water / Inert atmosphere 2.1: phosphorus pentachloride / 2,2,2-trifluoroethanol / Inert atmosphere 3.1: toluene / 45 °C / Inert atmosphere 4.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 4.2: 5 h / 60 °C / Inert atmosphere
Multi-step reaction with 5 steps 1.1: phosphorus pentachloride; α-picoline / toluene / 5 h / 20 - 40 °C / Inert atmosphere; Large scale 2.1: triethylamine / toluene; water / 1.5 h / 20 - 40 °C / Inert atmosphere; Large scale 2.2: 3 h / 0 °C / Large scale 3.1: potassium phosphate / toluene; water / 1 h / 45 °C 3.2: 5 h / 0 °C 4.1: toluene / 45 °C / Inert atmosphere 5.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 5.2: 5 h / 60 °C / Inert atmosphere
Multi-step reaction with 5 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 3 - 18 h / 20 °C 5.3: pH 7.0 - 7.5
Multi-step reaction with 6 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 5.1: sulfuric acid / 26 h / Heating / reflux 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 18 h / 20 °C 6.3: pH 7 - 14

  • 41
  • 2-fluoro-6-vinylaniline [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1.1: disodium hydrogenphosphate / water; Isopropyl acetate / Inert atmosphere 2.1: dmap / Isopropyl acetate / 80 °C / Inert atmosphere 3.1: phosphorus pentachloride; α-picoline / toluene / 40 °C / Inert atmosphere 4.1: triethylamine / toluene; water / Inert atmosphere 5.1: palladium diacetate; (S)-(6,6'-dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(bis(3,5-dimethylphanyl))phosphine; potassium acetate; copper(II) bis(tetrafluoroborate); carbon monoxide / methanol; tetrahydrofuran / 18 h / 70 °C / 1810.07 Torr 6.1: toluene / 45 °C / Inert atmosphere 7.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 7.2: 5 h / 60 °C / Inert atmosphere
  • 42
  • C15H12FNO2 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: dmap / Isopropyl acetate / 80 °C / Inert atmosphere 2.1: phosphorus pentachloride; α-picoline / toluene / 40 °C / Inert atmosphere 3.1: triethylamine / toluene; water / Inert atmosphere 4.1: palladium diacetate; (S)-(6,6'-dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(bis(3,5-dimethylphanyl))phosphine; potassium acetate; copper(II) bis(tetrafluoroborate); carbon monoxide / methanol; tetrahydrofuran / 18 h / 70 °C / 1810.07 Torr 5.1: toluene / 45 °C / Inert atmosphere 6.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 6.2: 5 h / 60 °C / Inert atmosphere
  • 43
  • C17H14F4N2O2 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: phosphorus pentachloride; α-picoline / toluene / 40 °C / Inert atmosphere 2.1: triethylamine / toluene; water / Inert atmosphere 3.1: palladium diacetate; (S)-(6,6'-dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(bis(3,5-dimethylphanyl))phosphine; potassium acetate; copper(II) bis(tetrafluoroborate); carbon monoxide / methanol; tetrahydrofuran / 18 h / 70 °C / 1810.07 Torr 4.1: toluene / 45 °C / Inert atmosphere 5.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 5.2: 5 h / 60 °C / Inert atmosphere
  • 44
  • C17H12F4N2O [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: triethylamine / toluene; water / Inert atmosphere 2.1: palladium diacetate; (S)-(6,6'-dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(bis(3,5-dimethylphanyl))phosphine; potassium acetate; copper(II) bis(tetrafluoroborate); carbon monoxide / methanol; tetrahydrofuran / 18 h / 70 °C / 1810.07 Torr 3.1: toluene / 45 °C / Inert atmosphere 4.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 4.2: 5 h / 60 °C / Inert atmosphere
  • 45
  • C18H19BrFN3O2 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: phosphorus pentachloride / acetonitrile 2.1: potassium hexamethylsilazane / N,N-dimethyl acetamide / 60 °C / Inert atmosphere 3.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 4.1: toluene / 45 °C / Inert atmosphere 5.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 5.2: 5 h / 60 °C / Inert atmosphere
  • 46
  • C18H18BrClFN3O [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: potassium hexamethylsilazane / N,N-dimethyl acetamide / 60 °C / Inert atmosphere 2.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 3.1: toluene / 45 °C / Inert atmosphere 4.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 4.2: 5 h / 60 °C / Inert atmosphere
  • 47
  • C12H12F3NO3 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: potassium hexamethylsilazane / N,N-dimethyl acetamide / 60 °C / Inert atmosphere 2.1: C14H18N2O6Pd2S2; (1R)-1-[(1R)-1-[bis[3,5-bis(trifluoromethyl)-phenyl]phosphino]ethyl]-2-[2-[bis(4-methoxy-3,5-dimethylphenyl)phosphino]-phenyl]ferrocene; cesium formate / N,N-dimethyl-formamide / 12 h / 60 °C / Inert atmosphere 3.1: toluene / 45 °C / Inert atmosphere 4.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 4.2: 5 h / 60 °C / Inert atmosphere
  • 49
  • (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
91% With sodium hydroxide In tetrahydrofuran at 60℃; for 10h;
Multi-step reaction with 2 steps 1.1: toluene / 45 °C / Inert atmosphere 2.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 2.2: 5 h / 60 °C / Inert atmosphere
22 mg With water; sodium hydroxide In tetrahydrofuran at 60℃; for 10h; 15 Synthesis of (S)-2-(8-fluoro-3-(2-meth oxy-5-(tr ifluo romethy 1) p heny l)-2-(4-(3 - metiioxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl) acetic acid 0.22 mL of an aqueous solution of 1M NaOH is added to a solution of (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin- 1 -y l)-3 ,4-dihy droquinazolin-4-y l)acetate (26 mg, 0.0443 mmol) in THF 0.5 ml. The reaction mixture is stirred at room temperature for 15-20 minutes, then heated at 60°C for 10 hours. The mixture is cooled to room temperature, and H2O (5 mL) and EtaO (5 mL) are added. The organic phase is eliminated and acidified with an aqueous solution of 0.5 M HC1 until pH 5-6 is reached. The aqueous phase is extracted with Et2O (5 mLx3). The combined organic phases are washed with a saturated aqueous solution of NaCl and dried with Na2SO4. The drying agent is filtered and evaporated to residue to obtain 22 mg of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxy- phenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl) acetic acid as a ’white solid. 1H NMR (300 MHz, d6-DMSO): δ=12.54 (br s, 1H), 7.54 (dd, >8.6, 1.2, 1H), 7.40 (br s, 1H), 7.23 (d, >8.6, 1H), 7.10 - 6.99 (m, 2H), 6.86 (m, 2H), 6.46 - 6.34 (m, 3H), 4.88 (m, 1H), 3.80 (s, 3H), 3.68 (s, 3H), 3.43 (br m, 4H), 2.97 - 2.75 (m, 5H), 2.44 (m, 1H).
22 mg With water; sodium hydroxide In tetrahydrofuran at 60℃; for 10h; 15 Synthesis of (S)-2-(8-fluoro-3-(2-meth oxy-5-(tr ifluo romethy 1) p heny l)-2-(4-(3 - metiioxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl) acetic acid 0.22 mL of an aqueous solution of 1M NaOH is added to a solution of (S)-methyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin- 1 -y l)-3 ,4-dihy droquinazolin-4-y l)acetate (26 mg, 0.0443 mmol) in THF 0.5 ml. The reaction mixture is stirred at room temperature for 15-20 minutes, then heated at 60°C for 10 hours. The mixture is cooled to room temperature, and H2O (5 mL) and EtaO (5 mL) are added. The organic phase is eliminated and acidified with an aqueous solution of 0.5 M HC1 until pH 5-6 is reached. The aqueous phase is extracted with Et2O (5 mLx3). The combined organic phases are washed with a saturated aqueous solution of NaCl and dried with Na2SO4. The drying agent is filtered and evaporated to residue to obtain 22 mg of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxy- phenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl) acetic acid as a ’white solid. 1H NMR (300 MHz, d6-DMSO): δ=12.54 (br s, 1H), 7.54 (dd, >8.6, 1.2, 1H), 7.40 (br s, 1H), 7.23 (d, >8.6, 1H), 7.10 - 6.99 (m, 2H), 6.86 (m, 2H), 6.46 - 6.34 (m, 3H), 4.88 (m, 1H), 3.80 (s, 3H), 3.68 (s, 3H), 3.43 (br m, 4H), 2.97 - 2.75 (m, 5H), 2.44 (m, 1H).

  • 50
  • C28H28F4N4O2 [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: palladium diacetate; (S)-(6,6'-dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(bis(3,5-dimethylphanyl))phosphine; potassium acetate; copper(II) bis(tetrafluoroborate); carbon monoxide / methanol; tetrahydrofuran / 18 h / 70 °C / 1810.07 Torr 2.1: toluene / 45 °C / Inert atmosphere 3.1: disodium hydrogenphosphate; tert-butyl methyl ether / water / 2 h 3.2: 5 h / 60 °C / Inert atmosphere
  • 51
  • [ 1018853-56-9 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 9 steps 1.1: dichloromethane / 4 h / 0 - 20 °C 2.1: bis(dibenzylideneacetone)-palladium(0); 2,5-Dimethyl-1,4-benzoquinone; o-fluoro-benzoic acid; (R,2R)-1-(2,6-bis(3,5-bis(trifluoromethyl)phenyl)-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)-2-methylpiperidine / tert-butyl methyl ether / 48 h / 0 - 25 °C / Schlenk technique 3.1: magnesium / methanol / 0.5 h / 20 °C / Sonication 4.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 12 h / 0 - 45 °C 4.2: 1 h / 20 °C 5.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 6.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 6.2: 0.5 h / 20 °C 7.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 8.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 8.2: 24 h / 100 °C 9.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 52
  • N-((2-allyl-6-fluorophenyl)(benzyl)carbamoyl)-2-methylbenzenesulfonamide [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 8 steps 1.1: bis(dibenzylideneacetone)-palladium(0); 2,5-Dimethyl-1,4-benzoquinone; o-fluoro-benzoic acid; (R,2R)-1-(2,6-bis(3,5-bis(trifluoromethyl)phenyl)-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)-2-methylpiperidine / tert-butyl methyl ether / 48 h / 0 - 25 °C / Schlenk technique 2.1: magnesium / methanol / 0.5 h / 20 °C / Sonication 3.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 12 h / 0 - 45 °C 3.2: 1 h / 20 °C 4.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 5.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 5.2: 0.5 h / 20 °C 6.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 7.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 7.2: 24 h / 100 °C 8.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 53
  • (S)-1-benzyl-8-fluoro-3-(o-tolylsulfonyl)-4-vinyl-3,4-dihydroquinazolin-2(1H)-one [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1.1: magnesium / methanol / 0.5 h / 20 °C / Sonication 2.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 12 h / 0 - 45 °C 2.2: 1 h / 20 °C 3.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 4.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 4.2: 0.5 h / 20 °C 5.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 6.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 6.2: 24 h / 100 °C 7.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 54
  • (S)-1-benzyl-8-fluoro-4-vinyl-3,4-dihydroquinazolin-2(1H)-one [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 12 h / 0 - 45 °C 1.2: 1 h / 20 °C 2.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 3.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 3.2: 0.5 h / 20 °C 4.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 5.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 5.2: 24 h / 100 °C 6.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 55
  • (S)-1-benzyl-8-fluoro-4-(2-hydroxyethyl)-3,4-dihydroquinazolin-2(1H)-one [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 2.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 2.2: 0.5 h / 20 °C 3.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 4.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 4.2: 24 h / 100 °C 5.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 56
  • (S)-1-benzyl-8-fluoro-4-(2-hydroxyethyl)-3-(2-methoxy-5-(trifluoromethyl)phenyl)-3,4-dihydroquinazolin-2(1H)-one [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 1.2: 0.5 h / 20 °C 2.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 3.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 3.2: 24 h / 100 °C 4.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 57
  • methyl (S)-2-(1-benzyl-8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-4-yl)acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 2.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 2.2: 24 h / 100 °C 3.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 58
  • [ 1170692-57-5 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 10 steps 1.1: zinc(II) chloride; sodium cyanoborohydride / methanol / 2 h / 0 - 50 °C 2.1: dichloromethane / 4 h / 0 - 20 °C 3.1: bis(dibenzylideneacetone)-palladium(0); 2,5-Dimethyl-1,4-benzoquinone; o-fluoro-benzoic acid; (R,2R)-1-(2,6-bis(3,5-bis(trifluoromethyl)phenyl)-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)-2-methylpiperidine / tert-butyl methyl ether / 48 h / 0 - 25 °C / Schlenk technique 4.1: magnesium / methanol / 0.5 h / 20 °C / Sonication 5.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 12 h / 0 - 45 °C 5.2: 1 h / 20 °C 6.1: potassium phosphate; N,N`-dimethylethylenediamine; copper(l) iodide / 1,4-dioxane / 24 h / 110 °C / Schlenk technique; Inert atmosphere 7.1: rhodium(III) chloride hydrate; sodium periodate / water; ethyl acetate; acetonitrile / 0.33 h / 0 °C 7.2: 0.5 h / 20 °C 8.1: 10 wt% Pd(OH)2 on carbon; hydrogen; trifluoroacetic acid / 12 h / 60 °C 9.1: trichlorophosphate; dmap / toluene / 12 h / 100 °C / Inert atmosphere 9.2: 24 h / 100 °C 10.1: sodium hydroxide / tetrahydrofuran / 10 h / 60 °C
  • 59
  • [ 791117-40-3 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 2.1: water; sodium hydrogencarbonate / ethyl acetate 2.2: 3 - 18 h / 20 °C 2.3: pH 7.0 - 7.5
Multi-step reaction with 3 steps 1.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 2.1: sulfuric acid / 26 h / Heating / reflux 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 18 h / 20 °C 3.3: pH 7 - 14
  • 60
  • [ 791116-51-3 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sulfuric acid / 26 h / Heating / reflux 2.1: water; sodium hydrogencarbonate / ethyl acetate 2.2: 18 h / 20 °C 2.3: pH 7 - 14
Multi-step reaction with 3 steps 1.1: sulfuric acid / 6 h / Heating / reflux 2.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 18 h / 20 °C 3.3: pH 7 - 14
Multi-step reaction with 3 steps 1.1: sulfuric acid / 6 h / Heating / reflux 2.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 3 - 18 h / 20 °C 3.3: pH 7.0 - 7.5
  • 61
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 1.2: pH 7 - 7.5 2.1: sulfuric acid / 26 h / Heating / reflux 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 18 h / 20 °C 3.3: pH 7 - 14
Multi-step reaction with 3 steps 1.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 1.2: pH 7 - 13 2.1: sulfuric acid / 26 h / Heating / reflux 3.1: water; sodium hydrogencarbonate / ethyl acetate 3.2: 18 h / 20 °C 3.3: pH 7 - 14
Multi-step reaction with 4 steps 1.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 1.2: pH 7 - 7.5 2.1: sulfuric acid / 6 h / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14
Multi-step reaction with 4 steps 1.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 1.2: pH 7 - 7.5 2.1: sulfuric acid / 6 h / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 3 - 18 h / 20 °C 4.3: pH 7.0 - 7.5
Multi-step reaction with 4 steps 1.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 1.2: pH 7 - 13 2.1: sulfuric acid / 6 h / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14
Multi-step reaction with 4 steps 1.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 1.2: pH 7 - 13 2.1: sulfuric acid / 6 h / Heating / reflux 3.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 3 - 18 h / 20 °C 4.3: pH 7.0 - 7.5

  • 62
  • [ 348-54-9 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 18 h / 20 °C 7.3: pH 7 - 14
  • 63
  • [ 917389-24-3 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 18 h / 20 °C 6.3: pH 7 - 14
  • 64
  • [ 917389-23-2 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 3 - 18 h / 20 °C 5.3: pH 7.0 - 7.5
Multi-step reaction with 6 steps 1.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: sodium hydroxide; water / 1,4-dioxane / 2 h / 20 °C 5.1: sulfuric acid / 26 h / Heating / reflux 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 18 h / 20 °C 6.3: pH 7 - 14
  • 65
  • [ 917389-26-5 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 18 h / 20 °C 5.3: pH 7 - 14
  • 66
  • [ 917389-35-6 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 2.2: pH 7 - 7.5 3.1: sulfuric acid / 26 h / Heating / reflux 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14
Multi-step reaction with 4 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 2.2: pH 7 - 13 3.1: sulfuric acid / 26 h / Heating / reflux 4.1: water; sodium hydrogencarbonate / ethyl acetate 4.2: 18 h / 20 °C 4.3: pH 7 - 14
Multi-step reaction with 5 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 2.2: pH 7 - 7.5 3.1: sulfuric acid / 6 h / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 18 h / 20 °C 5.3: pH 7 - 14
Multi-step reaction with 5 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 60 h / Heating / reflux 2.2: pH 7 - 7.5 3.1: sulfuric acid / 6 h / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 3 - 18 h / 20 °C 5.3: pH 7.0 - 7.5
Multi-step reaction with 5 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 2.2: pH 7 - 13 3.1: sulfuric acid / 6 h / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 18 h / 20 °C 5.3: pH 7 - 14
Multi-step reaction with 5 steps 1.1: water; sodium hydrogencarbonate / ethyl acetate 1.2: 18 h / 20 °C 1.3: pH 7.0 - 7.5 2.1: methanol; sodium methylate / acetonitrile / 77 h / Heating / reflux 2.2: pH 7 - 13 3.1: sulfuric acid / 6 h / Heating / reflux 4.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 5.1: water; sodium hydrogencarbonate / ethyl acetate 5.2: 3 - 18 h / 20 °C 5.3: pH 7.0 - 7.5

  • 67
  • [ 16588-75-3 ]
  • [ 917389-37-8 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: acetonitrile / 38 - 45 h / 35 - 88 °C 2.1: triethylamine / dichloro bis(acetonitrile) palladium(II); tris-(o-tolyl)phosphine / Isobutyronitrile / 16 - 22 h / 90 - 102 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 5.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 6.1: water; sodium hydrogencarbonate / ethyl acetate 6.2: 18 h / 20 °C 6.3: pH 7 - 14
Multi-step reaction with 7 steps 1.1: acetonitrile / 4 h / 82 °C 2.1: sulfuric acid; acetic acid / palladium diacetate / 20 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetone / 4 h / 56 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate / chlorobenzene / 9.17 - 9.33 h / 120 - 130 °C / Heating / reflux 5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 1,4-dioxane; chlorobenzene / 22 h / 20 °C / Heating / reflux 6.1: ethyl acetate / 19.5 - 75.5 h / 0 - 20 °C / Resolution of racemate 7.1: water; sodium hydrogencarbonate / ethyl acetate 7.2: 18 h / 20 °C 7.3: pH 7 - 14
  • 68
  • [ 917389-32-3 ]
  • sodium (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetate [ No CAS ]
YieldReaction ConditionsOperation in experiment
100% With sodium hydroxide In ethanol; di-isopropyl ether at 50℃; for 3.41667h; 01-04 Example 01 : Preparation of sodium (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1- yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetate The title compound was prepared from (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1- yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid (letermovir) according to the method described in WO 2013127971 A1.333.1 g of (S)-{8-fluoro-2-[4-(3-methoxyphenyl)piperazine-1-yl]-3-[2-methoxy-5- (trifluoromethyl)phenyl]-3,4-dihydroquinazoline-4-yl}acetic acid are dissolved in 1300 ml of a mixture of ethanol and diisopropyl ether (1 :1) in a 2000 ml three-neck flask. 21.9 g (546.84 mmol) of NaOH are added as a solid to the solution. The mixture is heated for 25 min to an inner temperature of 50 °C, and this yields a clear orange-coloured solution. The solution thus obtained is stirred for 3 hours at this temperature, and a thin suspension is formed already after 1 hour. The reaction mixture is then cooled down for 10 hours at a cooling rate of 3 °C/hour to an inner temperature of 20 °C and then stirred for a further 5 hours at this temperature. The total volume of the reaction mixture is reduced under vacuum to approximately 750 ml_ and the suspension obtained in this way is stirred at 20 °C for 2 hours. Next, 250 ml_ diisopropyl ether is added over a period of 10 min to the reaction mixture obtained and the mixture is stirred for further 2 hours. The crystalline product which is obtained is vacuumed off by a suction device, washed 2* with - in each case - 250 ml_ diisopropyl ether, and dried in a vacuum drying cabinet for 20 hours at 20 °C. and 160 mbar. The crystalline solid obtained in this way is then dried for 10 min at 90 °C. in an IR dryer and then again for further 16 hours at 60 °C in the vacuum drying cabinet. In this way a total of 274.4 g (86% of the theoretical yield) of the desired crystalline sodium salt of letermovir ethanol monohydrate is obtained.
With sodium hydroxide In di-isopropyl ether; Isopropyl acetate; lithium hydroxide monohydrate at 50℃; for 4h; 01; 02 Example 02. Preparation of sodium 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)pi- perazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-4H-quinazolin-4-yl]acetate tri hydrate in 500 g scale. 499 g of 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5- (trifluoromethyl)phenyl]-4/-/-quinazolin-4-yl]acetic acid are dissolved in a 1 : 2 mixture of isopropyl acetate and diisopropyl ether at 50 °C (0.75 L / 1.5 L), followed by addition of ca. 1.5 equivalents of NaOH (aqueous solution, 1 g / ml_, 50 ml_) and the solution is seeded with sodium 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5- (trifluoromethyl)phenyl]-4/-/-quinazolin-4-yl]acetate trihydrate (0.5 - 1 % w/w with respect to the base). The suspension is stirred for 4 hours at 50 °C (stir rate: 150 rpm, glass anchor shaft). Abundant white solid precipitates within the first hour. The reactor is gradually cooled down (50 °C to 20 °C in 1 hour) and its contents are filtered under vacuum and washed thrice with diisopropyl ether. The obtained white solid is dried under reduced pressure (2 - 3 mBar) at 50 °C for 15 hours. 510 g of sodium 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-trifluoromethyl)phenyl]-4/-/-quinazolin-4-yl]acetic acid trihydrate have been obtained.
With anhydrous sodium carbonate In lithium hydroxide monohydrate for 3h; Heating; 1-2 (1) Add 500 g of letermovir and 500 g of anhydrous sodium carbonate to the reaction flask, add 5 L of deionized water to the reaction flask, stir and heat, and keep at a temperature of 50-60 °C for 3 hours to prepare Aqueous solution containing letermovir sodium salt; (2) The temperature of the aqueous solution containing letermovir sodium salt prepared in step (1) was lowered to below 30°C, and a mixed solvent of 2L dichloromethane and 200mL ethanol was added to the above aqueous solution, stirred evenly, and allowed to stand. 1-2 hours, separate the layers, keep the organic phase, continue to add a mixed solvent of 2 L of dichloromethane and 200 mL of ethanol to the aqueous layer, let stand, separate the layers, combine the two organic phases, wash the organic phase with 1 L of saturated brine, After stirring evenly, let it stand for 2-3 hours, separate layers, continue to retain the organic phase, add 2kg of anhydrous sodium sulfate to the organic phase, dry overnight, filter, take the organic phase, and distill at atmospheric pressure, when the organic phase remains about 1.4L , add 1.4 L of isopropyl ether, stir for 2 hours, filter, and dry the filter cake under vacuum at a temperature of 50-60 ° C for 24-48 hours to obtain the crude product of letermovir sodium salt; (3) At room temperature, add 350 g of the crude Letermovir sodium salt product prepared in step (2) into the flask, add 1.8 L of dichloromethane to the flask, stir to dissolve, and after about 1 hour, filter and remove Insoluble matter, a clear mother liquor was obtained, 2.5L of isopropyl ether was added to the clear mother liquor, a white solid was precipitated, and after stirring for 15 minutes, the filter was filtered, and the filter cake was washed with isopropyl ether, and the filter cake was placed under vacuum at 50-60°C Drying under certain conditions for 24-48 hours, the refined product of letermovir sodium salt was obtained.
  • 69
  • ethyl (2-((S)-3-((S)-4-benzyl-2- thioxothiazolidin-3-yl)-1-((2-methoxy-5- (trifluoromethyl)phenyl)amino)-3-oxopropyl)-6- fluorophenyl)carbamate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: potassium carbonate / acetone / 0.08 h / 20 °C 3.2: Reflux 4.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 4.2: 18 h / 115 - 120 °C / Reflux 4.3: 2 h / Reflux 5.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: potassium carbonate / acetone / 0.08 h / 20 °C 3.2: Reflux 4.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 4.2: 24 h / 100 °C 5.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 3.2: 18 h / 20 °C 4.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 4.2: 18 h / 115 - 120 °C / Reflux 4.3: 2 h / Reflux 5.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 3.2: 18 h / 20 °C 4.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 4.2: 24 h / 100 °C 5.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: potassium carbonate / acetone / 0.08 h / 20 °C 3.2: Reflux 4.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 4.2: 3 h / 120 - 130 °C / Reflux 5.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 5 steps 1.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 3.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 3.2: 18 h / 20 °C 4.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 4.2: 3 h / 120 - 130 °C / Reflux 5.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr

  • 70
  • (S)-3-(2-((ethoxycarbonyl)amino)-3-fluorophenyl)-3-((2-methoxy-5-(trifluoro-methyl)phenyl)amino)propanoic acid [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: potassium carbonate / acetone / 0.08 h / 20 °C 2.2: Reflux 3.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 3.2: 18 h / 115 - 120 °C / Reflux 3.3: 2 h / Reflux 4.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 2.2: 18 h / 20 °C 3.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 3.2: 18 h / 115 - 120 °C / Reflux 3.3: 2 h / Reflux 4.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: potassium carbonate / acetone / 0.08 h / 20 °C 2.2: Reflux 3.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 3.2: 3 h / 120 - 130 °C / Reflux 4.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 2.2: 18 h / 20 °C 3.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 3.2: 3 h / 120 - 130 °C / Reflux 4.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: potassium carbonate / acetone / 0.08 h / 20 °C 2.2: Reflux 3.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 3.2: 24 h / 100 °C 4.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 4 steps 1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 2.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 2.2: 18 h / 20 °C 3.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 3.2: 24 h / 100 °C 4.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C

  • 71
  • (S)-2-(8-fluoro-3-(2-methoxy-5- (trifluoromethyl)phenyl)-2-oxo-1,2,3,4- tetrahydroquinazolin-4-yl)acetic acid [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: potassium carbonate / acetone / 0.08 h / 20 °C 1.2: Reflux 2.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 2.2: 18 h / 115 - 120 °C / Reflux 2.3: 2 h / Reflux 3.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 3 steps 1.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 1.2: 18 h / 20 °C 2.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 2.2: 18 h / 115 - 120 °C / Reflux 2.3: 2 h / Reflux 3.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 3 steps 1.1: potassium carbonate / acetone / 0.08 h / 20 °C 1.2: Reflux 2.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 2.2: 3 h / 120 - 130 °C / Reflux 3.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 3 steps 1.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 1.2: 18 h / 20 °C 2.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 2.2: 3 h / 120 - 130 °C / Reflux 3.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 3 steps 1.1: potassium carbonate / acetone / 0.08 h / 20 °C 1.2: Reflux 2.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 2.2: 24 h / 100 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 3 steps 1.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 1.2: 18 h / 20 °C 2.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 2.2: 24 h / 100 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C

  • 72
  • (S)-benzyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-4-yl)acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 1.2: 3 h / 120 - 130 °C / Reflux 2.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 2 steps 1.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 1.2: 18 h / 115 - 120 °C / Reflux 1.3: 2 h / Reflux 2.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
  • 73
  • (S)-benzyl-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolm-4-yl)acetate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
87% With 5%-palladium/activated carbon; hydrogen In tetrahydrofuran; water at 25℃; for 2h; 12; 13; 14 Synthesis of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3- methoxyphenyl)piperazin-1-yI)-3,4-dihydroqainazolm-4-yl) acetic acid 5% Pd/C, 50% wet (1.0 g), suspended in H2O (15 mL), is added to a solution of (S)-benzyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxy phenyl)- piperazin- 1 -yl)-3,4-dihydroquinazolin-4-yl)acetate (10.0 g) in THF (165 mL). The mixture is placed in a hydrogen atmosphere (3 bars) and left under stirring at 25 °C for 2 hours. The catalyst is filtered through cellulose, and the solution is concentrated to residue. Acetone (26 mL) is added, the mixture is filtered through cellulose, and the solution is dripped into in 232 mL of water. The mixture is left under stirring for 18 hours, and the solid is filtered and stove-dried at 55°C under vacuum. 7.5 g (87% yield) of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3- methoxyphenyl)piperazin- 1 -y I)-3 ,4-dihydroquinazolin-4-y 1) acetic acid is obtained as a white solid. 1H NMR (300 MHz, d6-DMSO): δ=12.54 (br s, 1H), 7.54 (dd, J=8.6, 1.2, 1H), 7.40 (br s, 1H), 7.23 (d, J=8.6, 1H), 7.10 - 6.99 (m, 2H), 6.86 (m, 2H), 6.46 - 6.34 (m, 3H), 4.88 (m, 1H), 3.80 (s, 3H), 3.68 (s, 3H), 3.43 (br m, 4H), 2.97 - 2.75 (m, 5H), 2.44 (m, 1H).
87% With 5%-palladium/activated carbon; hydrogen In tetrahydrofuran; water at 25℃; for 2h; 12; 13; 14 Synthesis of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3- methoxyphenyl)piperazin-1-yI)-3,4-dihydroqainazolm-4-yl) acetic acid 5% Pd/C, 50% wet (1.0 g), suspended in H2O (15 mL), is added to a solution of (S)-benzyl 2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxy phenyl)- piperazin- 1 -yl)-3,4-dihydroquinazolin-4-yl)acetate (10.0 g) in THF (165 mL). The mixture is placed in a hydrogen atmosphere (3 bars) and left under stirring at 25 °C for 2 hours. The catalyst is filtered through cellulose, and the solution is concentrated to residue. Acetone (26 mL) is added, the mixture is filtered through cellulose, and the solution is dripped into in 232 mL of water. The mixture is left under stirring for 18 hours, and the solid is filtered and stove-dried at 55°C under vacuum. 7.5 g (87% yield) of (S)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3- methoxyphenyl)piperazin- 1 -y I)-3 ,4-dihydroquinazolin-4-y 1) acetic acid is obtained as a white solid. 1H NMR (300 MHz, d6-DMSO): δ=12.54 (br s, 1H), 7.54 (dd, J=8.6, 1.2, 1H), 7.40 (br s, 1H), 7.23 (d, J=8.6, 1H), 7.10 - 6.99 (m, 2H), 6.86 (m, 2H), 6.46 - 6.34 (m, 3H), 4.88 (m, 1H), 3.80 (s, 3H), 3.68 (s, 3H), 3.43 (br m, 4H), 2.97 - 2.75 (m, 5H), 2.44 (m, 1H).
  • 74
  • ethyl N-(2-fluoro-6-formylphenyl)carbamate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: potassium carbonate / acetone / 0.08 h / 20 °C 5.2: Reflux 6.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 6.2: 24 h / 100 °C 7.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 5.2: 18 h / 20 °C 6.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 6.2: 24 h / 100 °C 7.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: potassium carbonate / acetone / 0.08 h / 20 °C 5.2: Reflux 6.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 6.2: 3 h / 120 - 130 °C / Reflux 7.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 5.2: 18 h / 20 °C 6.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 6.2: 3 h / 120 - 130 °C / Reflux 7.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: potassium carbonate / acetone / 0.08 h / 20 °C 5.2: Reflux 6.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 6.2: 18 h / 115 - 120 °C / Reflux 6.3: 2 h / Reflux 7.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 7 steps 1.1: toluene / 24 h / 20 °C 2.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 2.2: 2 h / -60 °C 2.3: 8 h / -60 °C 3.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 4.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 5.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 5.2: 18 h / 20 °C 6.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 6.2: 18 h / 115 - 120 °C / Reflux 6.3: 2 h / Reflux 7.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr

  • 75
  • ethyl (2-fluoro-6-(((2-methoxy-5-(trifluoromethyl)phenyl)imino)methyl)phenyl)carbamate [ No CAS ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: potassium carbonate / acetone / 0.08 h / 20 °C 4.2: Reflux 5.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 5.2: 3 h / 120 - 130 °C / Reflux 6.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: potassium carbonate / acetone / 0.08 h / 20 °C 4.2: Reflux 5.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 5.2: 24 h / 100 °C 6.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 4.2: 18 h / 20 °C 5.1: phosphorus pentachloride / dichloromethane / 2 h / Reflux 5.2: 3 h / 120 - 130 °C / Reflux 6.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 4.2: 18 h / 20 °C 5.1: trichlorophosphate; dmap / toluene / 100 °C / Reflux 5.2: 24 h / 100 °C 6.1: sodium hydroxide; water / tetrahydrofuran / 10 h / 60 °C
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: potassium carbonate / acetone / 0.08 h / 20 °C 4.2: Reflux 5.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 5.2: 18 h / 115 - 120 °C / Reflux 5.3: 2 h / Reflux 6.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr
Multi-step reaction with 6 steps 1.1: titanium tetrachloride / dichloromethane / 0.25 h / 0 °C 1.2: 2 h / -60 °C 1.3: 8 h / -60 °C 2.1: sodium hydroxide; water / tetrahydrofuran / 1 h / 0 - 5 °C 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / 22 h / Reflux 4.1: 1,1'-carbonyldiimidazole / N,N-dimethyl-formamide / 3.5 h / 20 °C 4.2: 18 h / 20 °C 5.1: trichlorophosphate / chlorobenzene / 3.5 h / Reflux 5.2: 18 h / 115 - 120 °C / Reflux 5.3: 2 h / Reflux 6.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran; water / 2 h / 25 °C / 2250.23 Torr

  • 76
  • [ 75-30-9 ]
  • [ 917389-32-3 ]
  • [ 2872586-94-0 ]
YieldReaction ConditionsOperation in experiment
With potassium carbonate In N,N-dimethyl-formamide at 0 - 25℃; Inert atmosphere; 8.2 2. Preparation of isopropyl ester impurities Add 0.71g of the compound of formula I, 0.4g of K2CO3 and 7mL of DMF into a 25mL three-necked flask, under nitrogen protection,Cool down to 0°C, add 0.31g isopropane iodide dropwise, transfer to room temperature or 25°C to continue the reaction, stir overnight, take samples for monitoring, and the reaction is complete.Add 14mL of water and 7mL of ethyl acetate to the reaction solution, stir for 5min, let stand for liquid separation, wash the upper organic layer with water (14mL×3), concentrate, and dry under vacuum at 40°C to obtain the compound of formula II
  • 77
  • [ CAS Unavailable ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
83.2 % Stage #1: C31H32F4N4O4*C18H14O8 With sodium hydrogencarbonate In ethyl acetate Stage #2: With water; lithium hydroxide at 30℃; 7 Embodiment 7 prepares final product compound I Add 4.5g of Int7 to 17.5ml of ethyl acetate, add 12.7g of saturated aqueous sodium bicarbonate solution, react for 1h, and separate the water phase. The organic phase was concentrated. Acetone and LiOH aqueous solution (0.5 g LiOH and 20 ml purified water) were added to the concentrate. React at 30°C for 4h. Add to 95ml of purified water. The pH was adjusted to 6.0 with 1M HCl. After suction filtration, the wet product was rinsed with purified water and dried to obtain 2.7 g of the product, with a yield of 83.2%, a purity of 99.8%, and an ee value of 99.86%.
  • 78
  • [ 2921059-75-6 ]
  • [ 917389-32-3 ]
YieldReaction ConditionsOperation in experiment
83.2 % Stage #1: C31H32F4N4O4*C20H18O8 With sodium hydrogencarbonate In ethyl acetate Stage #2: With water; lithium hydroxide at 30℃; 7 Embodiment 7 prepares final product compound I Add 4.5g of Int7 to 17.5ml of ethyl acetate, add 12.7g of saturated aqueous sodium bicarbonate solution, react for 1h, and separate the water phase. The organic phase was concentrated. Acetone and LiOH aqueous solution (0.5 g LiOH and 20 ml purified water) were added to the concentrate. React at 30°C for 4h. Add to 95ml of purified water. The pH was adjusted to 6.0 with 1M HCl. After suction filtration, the wet product was rinsed with purified water and dried to obtain 2.7 g of the product, with a yield of 83.2%, a purity of 99.8%, and an ee value of 99.86%.
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