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Chemical Structure| 1578155-69-7 Chemical Structure| 1578155-69-7

Structure of 1578155-69-7

Chemical Structure| 1578155-69-7

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Product Details of [ 1578155-69-7 ]

CAS No. :1578155-69-7
Formula : C16H12BrClFN3O2S
M.W : 444.71
SMILES Code : O=C(C1=C(CBr)NC(C2=NC=CS2)=N[C@H]1C3=CC=C(F)C=C3Cl)OC

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Application In Synthesis of [ 1578155-69-7 ]

* 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 [ 1578155-69-7 ]

[ 1578155-69-7 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 864448-41-9 ]
  • [ 1578155-69-7 ]
  • 9-[(R)-6-(2-chloro-4-fluorophenyl)-5-methoxycarbonyl-2-thiazol-2-yl-3,6-dihydropyrimidin-4-ylmethyl]-3-oxa-7,9-diazabicyclo[3.3.1]nonane-7-carboxylic acid tert-butyl ester [ No CAS ]
YieldReaction ConditionsOperation in experiment
94% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 16h; To a mixture of <strong>[864448-41-9]3-oxa-7,9-diaza-bicyclo[3.3.1]nonane-7-carboxylic acid tert-butyl ester</strong> (171 mg, 0.75mmol) and DIPEA(0.45 mL, 2.5 mmol) in CH2C12 (10 mL) was added (R)-6- bromomethyl-4-(2-chloro-4-fluoro-phenyl)-2-thiazol-2-yl-l,4-dihydro-pyrimidine-5-carboxylic acid methyl ester(222 mg, 0.5 mmol). The mixture was stirred at room temperature for 16 hours The mixture was concentrated in vacuo. The residue was purified by flash column chromatography to afford 9-[(R)-6-(2-chloro-4-fluoro-phenyl)-5-methoxycarbonyl-2-thiazol-2- yl-3,6-dihydro-pyrimidin-4-ylmethyl]-<strong>[864448-41-9]3-oxa-7,9-diaza-bicyclo[3.3.1]nonane-7-carboxylic acid tert-butyl ester</strong> as yellow oil (0.28 g, 94%). MS: calc'd (MH+) 592, measured (MH+) 592.
  • 2
  • [ 1187929-04-9 ]
  • [ 1578155-69-7 ]
  • [ 1578153-27-1 ]
YieldReaction ConditionsOperation in experiment
1.01 kg With 2,2,6,6-tetramethyl-piperidine; In dichloromethane; for 16.0h;Large scale; The 50 L flask was charged with crude (4R)-6-(bromomethyl)-4-(2-chloro-4-fluoro- phenyl)-2-thiazol-2-yl- 1 ,4-dthydropyrimidine-5-carboxylic acid methyl ester(compound IXa) from last step) in dichloromethane solution, (35)-<strong>[1187929-04-9]morpholine-3-carboxylic acid hydrochloride</strong>salt (1.02 eq, 0.53 kg, 3.14 mol) and 2,2,6,6-tetramethylpiperidine (2.87 eq, 1.24 kg, 8.80 mol) at25C - 28 C. The resulting solution was stirred at 25 C - 28 C for 16 hours.After reaction completion, water (10.0 L) was added to reaction mixture to quench thereaction. The reaction mixture was adjusted to pH = 2.5 using H3P04. After phase separation, the organic phase was washed with acid solution (using H3P04 to adjust pH = 2.5) twice to remove all the TMP. The organic solution was concentrated to dryness in vacuo and the residue was redissolved in MIBK (10.0 L). To the solution was then added MSA (0.78 eq, 0.23 kg, 2.39 mol) slowly in 2 hours. After the addition of MSA, the solution was heated to 40 C - 45 C and stirred for 2 hours. The resulting suspension was cooled to 23 C - 25 C. The reaction mixture was filtered and the collected solid was rinsed with MIBK (1.0 L). The resulting solid was dried invacuum oven at 45 C for 16 hours to afford the MSA salt of Example 3 (1.45 kg).To a 20 L flask was charged with MSA salt of Example 3 (L45 kg, 2.45 mel), EtOAc (15.0 L) and NaHCO3 aqueous solution (10 wt%, L33 kg) at roomtemperature After phase separation, the organic phase was washed with water (3.0 L). The organic solution was concentrated to dryness in vacu.o and the residue was re-dissolved in acetone (1.10 L).The resulting acetone solution was slowly added into water (12,0 L) in 12 hours at 20C -25 C. The resulting suspension was stirred for an additional 72 hours at 20C -25 C. Reaction mixture was filtered and the collected solid was rinsed with water (5.0 L) for 2 times. The resulting solid was dried under vacuum at 55 C for 72 hours until the weight was constant to give 1.01 kg product as light yellow solid. The purity was 99.5%, the yield was 66.6% for 3 steps,and the MS m/e =495.1 [M+H].
  • 3
  • [ 1578155-69-7 ]
  • [ 106825-79-0 ]
  • [ 1578153-27-1 ]
YieldReaction ConditionsOperation in experiment
75.1% With potassium carbonate; In methanol; at 35℃; for 3.5h; In a dry reaction flask(R) -6- (bromomethyl) -4- (2-chloro-4-fluorophenyl) -2- (thiazol-2-yl) -1,4-dihydropyrimidine-5-carboxylate(18.24 g, 36.9 mmol, the preparation method of which is described in Step 1 to Step 2 of Example WO2015144093), anhydrous methanol (250 mL),S-<strong>[106825-79-0]morpholine-3-carboxylic acid</strong> (5.81 g, 44.3 mmol) and anhydrous potassium carbonate (5.10 g, 36.9 mmol)The reaction mixture was reacted at 35 C for 3.5 hours. The reaction solution was concentrated to obtain a solutionProduct crude product. The crude product was cooled to room temperature and then water (150 mL) was added and the mixture was dissolved thoroughly.The aqueous layer was extracted with ethyl acetate (75 mL x 4) and the organic layer was discarded.To the aqueous layer was added concentrated hydrochloric acid (8 mL) with stirring, and the reaction mixture was stirred at 25 C for 18 hours,Followed by transfer to 3 C and continued stirring for 2 hours. A solid precipitated, filtered and the filter cake was rinsed with water (80 mL).The washed cake was vacuum dried at 60 C for 24 hours to give the compound A represented by the formula (I)As a yellow solid (13.72 g, yield: 75.1%).
With N-ethyl-N,N-diisopropylamine; In 1,2-dichloro-ethane; at 20℃; To a stuffed solution of (R)-6-bromomethyl-4- (2-chloro-4-fluoro-phenyl)-2-thiazol-2-yl- 1,4- dthydro-pyrimidine-5-carboxylic acid methyl ester (0.049 g, 0.11 mmol) and (S)-morpholine-3- carboxylic acid (Aldrich, CAS: 106825-79-0) (0.044 g, 0.17 mmol) in 1,2-dichloroethane (5 mL) was added dropwise DIPEA (0.078 mL, 0.45 mmol). The reaction mixture was stirred at room temperature until the disappearance of starting material which was checked by LC/MS. Themixture was diluted with EtOAc (50 mL) and washed successively with saturated aqueous NH4C1 solution and brine. The organic layer was separated and dried over Na2504. The solvent was concentrated in vacuo and the crude product was purified by prep-HPLC to give (S)-4-[(R)- 6-(2-Chloro-4-fluoro-phenyl)-5-methoxycarbonyl-2-thiazol-2-yl-3,6-dihydro-pyrimidin-4- ylmethyl]-<strong>[106825-79-0]morpholine-3-carboxylic acid</strong> (compound of Formula (I)) as described inW02014/037480.
 

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