Structure of 68947-43-3
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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. : | 68947-43-3 |
Formula : | C7H13NO2 |
M.W : | 143.18 |
SMILES Code : | O=C(C1CCN(C)CC1)O |
MDL No. : | MFCD06659473 |
InChI Key : | HCKNAJXCHMACDN-UHFFFAOYSA-N |
Pubchem ID : | 2736939 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H332-H335 |
Precautionary Statements: | P261-P280-P305+P351+P338 |
Num. heavy atoms | 10 |
Num. arom. heavy atoms | 0 |
Fraction Csp3 | 0.86 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 42.23 |
TPSA ? Topological Polar Surface Area: Calculated from |
40.54 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.42 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
-2.0 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.03 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.35 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.31 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.02 |
Log S (ESOL):? ESOL: Topological method implemented from |
0.6 |
Solubility | 568.0 mg/ml ; 3.97 mol/l |
Class? Solubility class: Log S scale |
Highly soluble |
Log S (Ali)? Ali: Topological method implemented from |
1.67 |
Solubility | 6740.0 mg/ml ; 47.1 mol/l |
Class? Solubility class: Log S scale |
Highly soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-0.11 |
Solubility | 111.0 mg/ml ; 0.776 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 |
No |
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 |
-8.59 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) |
1.1 |
* 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 |
---|---|---|
A mixture of ethyl piperidine-4-carboxylate (4.72 g), methyl iodide (2.24 mL), potassium carbonate (8.29 g) and acetonitrile (50 mL) was stirred at room temperature for 2 hrs. The reaction mixture was concentrated under reduced pressure and water (150 mL) was added. The mixture was extracted with ethyl acetate (150 mL). The ethyl acetate layer was washed with saturated brine (100 mL), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. A 1N aqueous sodium hydroxide solution (20 mL) was added to the residue (2.64 g), and the mixture was stirred overnight at room temperature. The reaction mixture was neutralized by adding 1N hydrochloric acid (20 mL) and the mixture was concentrated under reduced pressure. Ethanol was added to the residue, and the precipitate was filtered off. The filtrate was concentrated under reduced pressure. This step was repeated and ethanol and ethyl acetate were added to the residue for crystallization to give 1-methylpiperidine-4- carboxylic acid (1.79 g) as a colorless solid. H-NMR (CD30D) : 1.80-1. 98 (2H, m), 2.00-2. 14 (2H, m), 2.28- 2.42 (lH, m), 2.78 (3H, s), 2.88-3. 04 (2H. m), 3.32-3. 44 (2H. m). A mixture of 1-methylpiperidine-4-carboxylic acid (1.72 g) obtained above, tert-butyl 2-hydroxyethyl (methyl) carbamate (1.75 g) obtained in Reference Example 1, [1-ETHYL-3- [3-] (dimethylamino) propyl] carbodiimide hydrochloride (2.30 g), 4- dimethylaminopyridine (0.24 g) and acetonitrile (50 mL) was stirred at room temperature for 16 hrs. The reaction mixture was concentrated under reduced pressure and a saturated aqueous sodium hydrogen carbonate solution (50 mL) was added to the residue. The mixture was extracted with ethyl acetate (100 [ML).] The ethyl acetate layer was washed with saturated brine (50 [ML),] dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (eluted with ethyl acetate: [HEXANE=50] : 50, then 80: 20). IN Hydrochloric acid (25 mL) was added to the purified product (2.73 g), and the mixture was stirred overnight at room temperature. The reaction mixture was concentrated under reduced pressure and isopropanol was added. The mixture was again concentrated under reduced pressure and the precipitated solid was collected by filtration to give the title compound (1.72 g) as a colorless solid. [H-NMR] [(DMSO-D6)] : 1.70-2. 20 (4H, m), 2.40-3. 50 [(13H,] m), 4. 31 (2H, m), 9.25 (2H, br), 10.77 (lH, br). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride;dmap; In acetonitrile; at 20℃; for 16h; | A mixture of ethyl piperidine-4-carboxylate (4.72 g), methyl iodide (2.24 mL), potassium carbonate (8.29 g) and acetonitrile (50 mL) was stirred at room temperature for 2 hrs. The reaction mixture was concentrated under reduced pressure and water (150 mL) was added. The mixture was extracted with ethyl acetate (150 mL). The ethyl acetate layer was washed with saturated brine (100 mL), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. A 1N aqueous sodium hydroxide solution (20 mL) was added to the residue (2.64 g), and the mixture was stirred overnight at room temperature. The reaction mixture was neutralized by adding 1N hydrochloric acid (20 mL) and the mixture was concentrated under reduced pressure. Ethanol was added to the residue, and the precipitate was filtered off. The filtrate was concentrated under reduced pressure. This step was repeated and ethanol and ethyl acetate were added to the residue for crystallization to give 1-methylpiperidine-4- carboxylic acid (1.79 g) as a colorless solid. H-NMR (CD30D) : 1.80-1. 98 (2H, m), 2.00-2. 14 (2H, m), 2.28- 2.42 (lH, m), 2.78 (3H, s), 2.88-3. 04 (2H. m), 3.32-3. 44 (2H. m). A mixture of <strong>[68947-43-3]1-methylpiperidine-4-carboxylic acid</strong> (1.72 g) obtained above, tert-butyl 2-hydroxyethyl (methyl) carbamate (1.75 g) obtained in Reference Example 1, [1-ETHYL-3- [3-] (dimethylamino) propyl] carbodiimide hydrochloride (2.30 g), 4- dimethylaminopyridine (0.24 g) and acetonitrile (50 mL) was stirred at room temperature for 16 hrs. The reaction mixture was concentrated under reduced pressure and a saturated aqueous sodium hydrogen carbonate solution (50 mL) was added to the residue. The mixture was extracted with ethyl acetate (100 [ML).] The ethyl acetate layer was washed with saturated brine (50 [ML),] dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (eluted with ethyl acetate: [HEXANE=50] : 50, then 80: 20). IN Hydrochloric acid (25 mL) was added to the purified product (2.73 g), and the mixture was stirred overnight at room temperature. The reaction mixture was concentrated under reduced pressure and isopropanol was added. The mixture was again concentrated under reduced pressure and the precipitated solid was collected by filtration to give the title compound (1.72 g) as a colorless solid. [H-NMR] [(DMSO-D6)] : 1.70-2. 20 (4H, m), 2.40-3. 50 [(13H,] m), 4. 31 (2H, m), 9.25 (2H, br), 10.77 (lH, br). | |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In acetonitrile; at 15 - 30℃; for 16h; | A mixture of <strong>[68947-43-3]1-methylpiperidine-4-carboxylic acid</strong> (1.72 g) obtained above, tert-butyl 2-hydroxyethyl(methyl)carbamate (1.75 g) obtained in Reference Synthetic Example 1, 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide (2.30 g), 4-dimethylaminopyridine (0.24 g) and acetonitrile (50 mL) was stirred at room temperature for 16 hrs. The reaction solution was concentrated under reduced pressure, and to the residue was added saturated aqueous solution of sodium bicarbonate (50 mL), and extracted with ethyl acetate (100 mL). The ethyl acetate layeer was washed with saturated brine (50 mL), and dried over anhydrous magnesium sulfate, followed by concentrating under reduced pressure. The residue was purified with basic silica gel column chromatography (eluted with methanol : ethyl acetate = 50 : 50, then 80 : 20). To the purified material (2.73 g) was added 1 N hydrochloric acid (25 mL), and stirred at room temperature overnight. The reaction solution was concentrated under reduced pressure, and isopropanol was added, then, concentrated again under reduced pressure. The precipitated crystals were collected by filtration to give title compound as colorless solid (1.72 g).1H-NMR (DMSO-d6) : 1.70-2.20(4H,m), 2.40-3.50 (13H,m), 4.31(2H,m), 9.25(2H,br), 10.77 (1H,br). | |
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride;dmap; In acetonitrile; at 20℃; for 16h; | A mixture of <strong>[68947-43-3]1-methylpiperidine-4-carboxylic acid</strong> (1.72 g) obtained above, tert-butyl 2-hydroxyethyl(methyl)carbamate (1.75 g) obtained in Reference Example 1, 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide hydrochloride (2.30 g), 4-dimethylaminopyridine (0.24 g) and acetonitrile (50 mL) was stirred at room temperature for 16 hrs. The reaction mixture was concentrated under reduced pressure and a saturated aqueous sodium hydrogen carbonate solution (50 mL) was added to the residue. The mixture was extracted with ethyl acetate (100 mL). The ethyl acetate layer was washed with saturated brine (50 mL), dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (eluted with ethyl acetate:hexane=50:50, then 80:20). 1N Hydrochloric acid (25 mL) was added to the purified product (2.73 g), and the mixture was stirred overnight at room temperature. The reaction mixture was concentrated under reduced pressure and isopropanol was added. The mixture was again concentrated under reduced pressure and the precipitated solid was collected by filtration to give the title compound (1.72 g) as a colorless solid.1H-NMR(DMSO-d6) : 1.70-2.20 (4H,m), 2.40-3.50 (13H,m), 4.31 (2H,m), 9.25 (2H,br), 10.77 (1H,br). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Preparation of 3:0.1 mol of I was stirred with 0.11 mol of CDI in 200 ml of chloroform at room temperature for 2 hours. Then 2 (0.1 mol) was added and reaction mixture was stirred at room temperature overnight. 200 ml of water were added, after that organic layer was separated and solvent removed under reduced pressure. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | 1-Methylisonipecotic acid (5.5 g, 38.4 mmol) was dissolved in dimethylformamide (100 ml) with heating. Diisopropylethylamine (8.0 ml, 46.1 mmol), 1-hydroxybenzotriazole (5.2 g, 38.4 mmol), and N,O-dimethylhydroxylamine hydrochloride (4.1 g, 42.2 mmol) were added and the reaction mixture was stirred 5 min. 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (7.4 g, 38.4 mmol) was added and the resulting homogeneous solution was stirred for 63 hours at ambient temperature. The solvent was removed under reduced pressure. The residue was dissolved in water and the solution was basified to pH 9 with 5N sodium hydroxide solution. This aqueous solution was extracted with methylene chloride then saturated with sodium chloride and extracted with chloroform/isopropanol (3/1). The combined organic extracts were dried over sodium sulfate and the solvent was removed under reduced pressure to give 9.5 g of a yellow liquid. Purification by flash chromatography (silica gel, methylene chloride:methanol:ammonium hydroxide, 100:10:1) gave 5.7 g (80percent) of product as a light yellow liquid. [00381] MS (m/e): 186(M+). [00382] Analysis for C9H18N2O2: |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine; In DMF (N,N-dimethyl-formamide); at 20℃; for 1h; | A solution of [4-AMINO-2-(PIPERIDIN-4-YLAMINO)-THIAZOL-5-YL]-(2, 6-DIFLUORO-PHENYL)- methanone (Example A6 ; 300 mg, 1. 0 MMOL), 1-methyl-piperidine-4-carboxylic acid (230mg, 1. 25 MMOL), benzotriazol-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBop ; 572mg, 1. 1 MMOL), and triethylamine (604 mg, 6. 0 MMOL) in DMF (10 ml) stirred at room temperature for 60 minutes. The solvent was removed under reduced pressure. A solution of the resultant residue in ethyl acetate was washed with sat. NAHC03, dried over MGS04, filtered, and concentrated. Purification via reversed phase preparative HPLC provided yellow solid in 65percent yield. H NMR (DMSO-d6) : 8 8. 81 (br, 1H), 8. 08 (s, 2H), 7. 61-7. 42 (m, 1H), 7. 27-7. 08 (m, 2H), 4. 31- 4. 13 (m, 2H), 3. 98-3. 79 (m, 3H), 3. 39-3. 11 (m, 3H), 2. 92-2. 64 (m, 4H), 2. 28 (s, 3H), 2. 12-1. 77 (m, 4H), 1. 41-1. 14 (m, 2H). HRMALDIMS. Calcd for C22H27F2N502SNA (M+Na+) : 486. 1751. Found : 486. 1757 |
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