Structure of 50735-33-6
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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CAS No. : | 50735-33-6 |
Formula : | C7H7ClN2O2 |
M.W : | 186.60 |
SMILES Code : | O=C(OC)C1=C(N)N=CC(Cl)=C1 |
MDL No. : | MFCD09031678 |
InChI Key : | PEYKGXOKTQNWCI-UHFFFAOYSA-N |
Pubchem ID : | 15828199 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.14 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 44.93 |
TPSA ? Topological Polar Surface Area: Calculated from |
65.21 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.57 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.54 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.11 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.75 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.13 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.22 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.21 |
Solubility | 1.16 mg/ml ; 0.00624 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.52 |
Solubility | 0.565 mg/ml ; 0.00303 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.36 |
Solubility | 0.815 mg/ml ; 0.00437 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
No |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-6.34 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
1.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
0.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.73 |
* 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.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With N-chloro-succinimide; In acetonitrile; at 60℃; for 6.0h; | 100 mmol (15.2 g) of methyl 2-aminonicotinate were reacted with 120 mmol (16.02 g) of N-chlorosuccinimide at 60 ° C for 6 hours. Acetonitrile as a solvent. After completion of the reaction, methyl 2-amino-5-chloronicotinate was obtained, which was allowed to stand at 0 ° C for three hours. The solid was collected by filtration and dried to give a solid of methyl 2-amino-5-chloronicotinate and the acetonitrile was recovered. 17.3 g of product was obtained with a yield of 93percent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With ammonia; water; In 1,4-dioxane; at 80 - 90℃; for 216.0h; | Piperazine A37 may be used in place of piperazine or a substituted piperazine in the above examples. Lithium 2-amino-5-chloronicotinateA solution of 2,5-dichloronicotinic acid (20.2 g, 0.105 mol) in methanol (500 mL) was cooled to 00C and neat thionyl chloride (38 mL, 63 g, 0.525 mol) was added over -30 min. The reaction mixture was stirred at O0C for 1 hour. The cooling bath was removed, the reaction temperature was allowed to warm to room temperature, and the reaction was allowed to stir for an additional 2 days at room temperature. The solvent was removed under reduced pressure to give an off-white residue. The residue was dissolved in Et2O (-500 mL) and the resulting solution was washed successively with saturated aqueous NaHCO3 solution (-300 mL), water (-300 mL), and brine (-300 mL). The organic layer was separated, dried over anhydrous MgSO4, and filtered. Removal of the solvent under reduced pressure yielded methyl 2,5-dichloronicotinate (21.0 g, 97percent) as a white solid. EPO <DP n="128"/>Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) 0C for 9 days. The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and then purification by flash column chromatography (25:10:1 hexane-CH2CI2- Et2O), gave 6.08 g (75percent) of methyl 2-amino-5-chloronicotinate. A solution of LiOH*H2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of methyl 2-amino~5~chloronicotinate (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 7O0C for 24 hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-ch.oronicotinate was obtained. |
75% | With ammonia; In 1,4-dioxane; at 85℃; for 216.0h; | Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1 ,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) 0C for 9 days; The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and then purification by flash column chromatography (25:10:1 hexane-CH2CI2- Et2O), gave 6.08 g (75percent) of methyl 2-amino-5-chloronicotinate. |
75% | With ammonia; In 1,4-dioxane; at 85℃; for 216.0h; | Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1 ,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) °C for 9 days. The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and then purification by flash column chromatography (25:10:1 hexane-CH2CI2- Et2O), gave 6.08 g (75percent) of methyl 2-amino~5-chloronicotinate. |
75% | With ammonia; In 1,4-dioxane; at 80 - 90℃; for 216.0h; | A solution of 2,5-dichloronicotinic acid A54 (20.2 g, 0.105 mol) in methanol (500 mL) was cooled to 00C and neat thionyl chloride (38 mL, 63 g, 0.525 mol) was added over -30 min. The reaction mixture was stirred at 0°C for 1 hour. The cooling bath was removed, the reaction temperature was allowed to warm to rt, and the reaction was allowed to stir for an additional 2 days at room temperature and the solvent was removed under reduced pressure to give an off-white residue. The residue was dissolved in Et.2psi (-500 mL) and the resulting solution was washed successively with saturated aqueous NaHCO3 solution (-300 mL), water (-300 mL), and brine (-300 mL). The organic layer was separated, dried over anhydrous MgSO4, and filtered. Removal of the solvent under reduced pressure yielded methyl 2,5-dichloronicotinate (21.0 g, 97percent) as a white solid.Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1 ,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) 0C for 9 days. The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and <n="101"/>then purification by flash column chromatography (25:10:1 hexane-C H2CI2- Et2O), gave 6.08 g (75percent) of methyl 2-amino-5-chloronicotinate.A solution of LiOHH2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of methyl 2-amino-5-chloronicotinate (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 700C for 24 hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-chloronicotinate A55 was obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With lithium hydroxide; In methanol; water; at 70℃; for 24.0h; | Piperazine A37 may be used in place of piperazine or a substituted piperazine in the above examples. Lithium 2-amino-5-chloronicotinateA solution of 2,5-dichloronicotinic acid (20.2 g, 0.105 mol) in methanol (500 mL) was cooled to 00C and neat thionyl chloride (38 mL, 63 g, 0.525 mol) was added over -30 min. The reaction mixture was stirred at O0C for 1 hour. The cooling bath was removed, the reaction temperature was allowed to warm to room temperature, and the reaction was allowed to stir for an additional 2 days at room temperature. The solvent was removed under reduced pressure to give an off-white residue. The residue was dissolved in Et2O (-500 mL) and the resulting solution was washed successively with saturated aqueous NaHCO3 solution (-300 mL), water (-300 mL), and brine (-300 mL). The organic layer was separated, dried over anhydrous MgSO4, and filtered. Removal of the solvent under reduced pressure yielded methyl 2,5-dichloronicotinate (21.0 g, 97percent) as a white solid. EPO <DP n="128"/>Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) 0C for 9 days. The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and then purification by flash column chromatography (25:10:1 hexane-CH2CI2- Et2O), gave 6.08 g (75percent) of <strong>[50735-33-6]methyl 2-amino-5-chloronicotinate</strong>. A solution of LiOH*H2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of methyl 2-amino~5~chloronicotinate (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 7O0C for 24 hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-ch.oronicotinate was obtained. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With lithium hydroxide; In methanol; water; at 70℃; for 24.0h; | A solution of LiOH-H2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of <strong>[50735-33-6]methyl 2-amino-5-chloronicotinate</strong> (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 7O0C for 24 EPO <DP n="126"/>hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-chloronicotinate was obtained. |
95% | With lithium hydroxide; In methanol; water; at 70℃; for 24.0h; | A solution of LiOH-H2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of <strong>[50735-33-6]methyl 2-amino-5-chloronicotinate</strong> (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 70°C for 24 hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-chloronicotinate was obtained. |
95% | With lithium hydroxide; water; In methanol; at 70℃; for 24.0h; | A solution of 2,5-dichloronicotinic acid A54 (20.2 g, 0.105 mol) in methanol (500 mL) was cooled to 00C and neat thionyl chloride (38 mL, 63 g, 0.525 mol) was added over -30 min. The reaction mixture was stirred at 0°C for 1 hour. The cooling bath was removed, the reaction temperature was allowed to warm to rt, and the reaction was allowed to stir for an additional 2 days at room temperature and the solvent was removed under reduced pressure to give an off-white residue. The residue was dissolved in Et.2psi (-500 mL) and the resulting solution was washed successively with saturated aqueous NaHCO3 solution (-300 mL), water (-300 mL), and brine (-300 mL). The organic layer was separated, dried over anhydrous MgSO4, and filtered. Removal of the solvent under reduced pressure yielded methyl 2,5-dichloronicotinate (21.0 g, 97percent) as a white solid.Performed in duplicate on identical scales in two pressure vessels, methyl 2,5-dichloronicotinate (4.5 g, 22 mmol) was dissolved in ammonia solution (250 mL, 0.5 M in 1 ,4-dioxane; 0.125 mol). The pressure vessels were sealed and heated at (85 +/- 5) 0C for 9 days. The two reaction mixtures were allowed to cool to room temperature, then combined and concentrated under reduced pressure to yield a white solid. Dissolution of the solid in 1 :1 acetone-MeOH (-500 mL), followed by adsorption onto silica gel (25 g) and <n="101"/>then purification by flash column chromatography (25:10:1 hexane-C H2CI2- Et2O), gave 6.08 g (75percent) of <strong>[50735-33-6]methyl 2-amino-5-chloronicotinate</strong>.A solution of LiOHH2O (1.38 g, 33 mmol) in water (33 mL) was added in one portion to a suspension of <strong>[50735-33-6]methyl 2-amino-5-chloronicotinate</strong> (6.08 g, 27 mmol) in MeOH (110 mL). The reaction mixture was stirred at 700C for 24 hours, and gradually became homogeneous. The solvents were removed under reduced pressure, and after the resulting white solid was dried under vacuum (<1 mmHg) to constant weight, 5.51 g (95percent) of lithium 2-amino-5-chloronicotinate A55 was obtained. |
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