Structure of 209526-98-7
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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. : | 209526-98-7 |
Formula : | C6H6ClNO |
M.W : | 143.57 |
SMILES Code : | OCC1=NC=C(Cl)C=C1 |
MDL No. : | MFCD10000856 |
InChI Key : | JJNKKECPOPWYNY-UHFFFAOYSA-N |
Pubchem ID : | 20537893 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H332-H335 |
Precautionary Statements: | P280-P305+P351+P338-P310 |
Num. heavy atoms | 9 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.17 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 35.37 |
TPSA ? Topological Polar Surface Area: Calculated from |
33.12 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.39 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.63 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.08 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.49 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.85 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.09 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.55 |
Solubility | 4.01 mg/ml ; 0.0279 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-0.9 |
Solubility | 18.1 mg/ml ; 0.126 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.45 |
Solubility | 0.514 mg/ml ; 0.00358 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 |
-6.73 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) |
1.46 |
* 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 |
---|---|---|
89% | With thionyl chloride;N,N-dimethyl-formamide; In dichloromethane; at 0 - 20℃; for 4h; | 5-chloro-2(chloromethyl)pyridine; [00372] To a 0 C solution of 5-chloropicolinic acid (3.00 g, 19.0 mmol) indichloromethane (20 mL) was added sulfurous dichloride (2.78 mL, 38.1 mmol), after which the reaction was warmed to room temperature and stirred at that temperature for 4 hours. The reaction was then concentrated to dryness, then reconstituted in dichloromethane (5 mL). Methanol (10 mL) was added to the reaction mixture, and the reaction was allowed to stir at room temperature for 12 hours, after which it was then diluted with water, extracted with ethyl acetate (3 x 50 mL), washed with water, then washed with saturated sodium bicarbonate solution, dried (magnesium sulfate), filtered and concentrated. Purification was achieved by silica gel chromatography (ISCO 80g) using 0 to 80% ethyl acetate in hexanes to afford methyl 5-chloropicolinate was as an off-white solid (2.75 g, 15.2 mmol, 80% yield ).[00373] To a 0 C solution of methyl 5-chloropicolinate (2.70 g, 15.7 mmol) in methanol (50 mL) was added sodium borohydride (1.79 g, 47.2 mmol), after which the reaction was warmed to room temperature and stirred at that temperature for 4 hours. The reaction mixture was then concentrated to a residue which was treated with 1M hydrochloric acid solution (15 mL), extracted with ethyl acetate (3 x 100 mL), washed with water, then washed with saturated sodium bicarbonate solution, dried (magnesium sulfate), filtered and concentrated. Purification was achieved by silica gel chromatography (ISCO 80g) using 0 to 60% ethyl acetate in hexanes to afford (5-chloropyridin-2-yl)methanol was as an off-white solid (2.15 g, 14.9 mmol, 95% yield).[00374] To a 0 C solution of (5-chloropyridin-2-yl)methanol (2.10 g, 14.6 mmol) in dichloromethane (10 mL) was added sulfurous dichloride (1.60 mL, 21.9 mmol) followed by N,N-dimethylformamide (50 μ), after which the reaction was warmed to room temperature and stirred at that temperature for 4 hours. The reaction mixture was then concentrated to a residue which was reconstituted in water (15 mL), ethyl acetate (15 mL), and saturated sodium bicarbonate solution (15 mL). The organic layers were separated and washed with saturated sodium chloride solution, dried (magnesium sulfate), filtered and concentrated. Purification was achieved by silica gel chromatography (ISCO 40g) using 0 to 50% ethyl acetate in hexanes to afford 5-chloro-2(chloromethyl)pyridine as an light brown oil (2.11 g, 13.0 mmol, 89% yield). |
78% | To a mixture of (5-chloro-pyridine-2-yl)-methanol (706 mg, 4.92 mmol) described in Manufacturing Example 63-1-1 and dichloromethane (70 mL) was added thionyl chloride (539 μL, 7.38 mmol), which was stirred for 1 hour at room temperature. Saturated aqueous sodium hydrogencarbonate solution was added to the reaction mixture, which was then extracted with dichloromethane. The organic layer was separated, washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (620.0 mg, 78%). 1H-NMR Spectrum (CDCl3) δ (ppm): 4.66 (2H, s), 7.45 (1H, d, J=8.0 Hz), 7.71 (1H, dd, J=2.8, 8.0 Hz), 8.54 (1H, d, J=2.8 Hz). | |
With thionyl chloride;N,N-dimethyl-formamide; In dichloromethane; at 0 - 20℃; for 1h; | C. Preparation of 5-chloro-2-(chloromethyl)pyridine To a stirring solution of (5-chloropyridin-2-yl)methanol (840 mg, 5.8 mmol) in dichloromethane (10 mL) at 0 C. under argon was added thionyl chloride (0.64 mL, 8.77 mmol), followed by 4 drops of DMF (white precipitate formed). The reaction mixture was allowed to stir at room temperature for 1 h. The reaction mixture was concentrated to a white solid. The solid thus obtained was cooled in an ice bath before EtOAc (20 mL) and water (20 mL) and then 10% aqueous Na2CO3 solution (20 mL) were added. The organic layer was separated, washed with saturated aqueous NaCl, dried (MgSO4), filtered and concentrated to obtain 840 mg of the title compound as a light brown gum. HPLC/MS: retention time=2.392 min, [M+H]30 =162. |
With thionyl chloride;N,N-dimethyl-formamide; In dichloromethane; at 20℃; for 1h; | C. Preparation of 5-chloro-2-(chloromethyl)pyridine To a stirring solution of (5-chloropyridin-2-yl)methanol (840 mg, 5.8 mmol) in dichloromethane (10 mL) at 0 C. under argon was added thionyl chloride (0.64 mL, 8.77 mmol), followed by 4 drops of DMF (white precipitate formed). The reaction mixture was allowed to stir at room temperature for 1 h. The reaction mixture was concentrated to a white solid. The solid thus obtained was cooled in an ice bath before EtOAc (20 mL) and water (20 mL) and then 10% aqueous Na2CO3 solution (20 mL) were added. The organic layer was separated, washed with brine, dried (MgSO4), filtered and concentrated to obtain 840 mg of the title compound as a light brown gum. HPLC/MS: retention time=2.392 min, [M+H]+=162. |
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