Structure of 193480-28-3
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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. : | 193480-28-3 |
Formula : | C17H23NO3 |
M.W : | 289.37 |
SMILES Code : | O=C1CC(CC2=CC=CC=C2)N(C(OC(C)(C)C)=O)CC1 |
MDL No. : | MFCD04035610 |
InChI Key : | LQBXEVOJCOQNTJ-UHFFFAOYSA-N |
Pubchem ID : | 18319921 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 21 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.53 |
Num. rotatable bonds | 5 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 86.09 |
TPSA ? Topological Polar Surface Area: Calculated from |
46.61 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
3.07 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.59 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.82 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.34 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.85 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.73 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.15 |
Solubility | 0.206 mg/ml ; 0.000712 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.22 |
Solubility | 0.175 mg/ml ; 0.000606 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.08 |
Solubility | 0.0242 mg/ml ; 0.0000836 mol/l |
Class? Solubility class: Log S scale |
Moderately 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) |
Yes |
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 |
-6.23 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 |
0.0 |
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<0.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.86 |
* 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 |
---|---|---|
100% | In dichloromethane; at 20℃; for 48h; | Di-tert-butyl dicarbonate (21.8 g) was added to a mixture of intermediate 1 (17 g) in CH2Cl2 (500 ml) and the mixture was stirred at RT for 48 hours. The mixture was evaporated, the residue was taken up in water and toluene and the organic layer was separated. The aqueous layer was extracted again with toluene. The combined organic layers were dried, filtered and evaporated, yielding 38 g (100%) of (+/-)-1,1-dimethylethyl 4-oxo-2-(phenylmethyl)-1-piperidinecarboxylate (intermediate 6). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74.1% | With hydrogen;thiophene; titanium(IV) isopropylate; platinum; In isopropyl alcohol; at 50℃; | A mixture of (+/-)-1,1-dimethylethyl 4-oxo-2-(phenylmethyl)-1-piperidine carboxylate (0.1 mol) and N-(4-phenyl-4-piperidinyl)acetamide (0.1 mol) in 2-propanol (500 ml) was hydrogenated at 50 C. with platinum (4 g) as a catalyst in the presence of titanium(IV)isopropoxide (28.5 g) and thiophene (4%; 1 ml). After uptake of hydrogen, the catalyst was filtered off and the filtrate was evaporated. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 97/3). The pure fractions were collected and the solvent was evaporated, yielding 40 g (74.1%) of (+/-)-1,1-dimethylethyl 4-[4-(acetylamino)-4-phenyl-1-piperidinyl]-2-(phenylmethyl)-1-piperidinecarboxylate (intermediate 19). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
38 g (100%) | In CH2Cl2 (500 mo); water; | EXAMPLE A4 Di-tert-butyl dicarbonate (21.8 g) was added to a mixture of intermediate 1 (17 g) in CH2Cl2 (500 mo) and the mixture was stirred at RT for 48 hours. The mixture was evaporated, the residue was taken up in water and toluene and the organic layer was separated. The aqueous layer was extracted again with toluene. The combined organic layers were dried, filtered and evaporated, yielding 38 g (100%) of (+-)-1,1-dimethylethyl 4-oxo-2-(phenylmethyl)-1-piperidinecarboxylate (intermediate 6). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40 g (74.1%) | thiophene; titanium(IV) isopropylate; In isopropyl alcohol; | a) A mixture of (+-)-1,1-dimethylethyl 4-oxo-2-(phenylmethyl)-1-piperidine carboxylate (0.1 mol) and N-(4-phenyl-4-piperidinyl)acetamide (0.1 mol) in 2-propanol (500 ml) was hydrogenated at 50 C. with platinum (4 g) as a catalyst in the presence of titanium (IV)isopropoxide (28.5 g) and thiophene (4%; 1 ml). After uptake of hydrogen the catalyst was filtered off and the filtrate was evaporated. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 97/3). The pure fractions were collected and the solvent was evaporated, yielding 40 g (74.1%) of (+-)-1,1-dimethylethyl 4-[4-(acetylamino)-4-phenyl-1-piperidinyl]-2-(phenylmethyl)-1-piperidinecarboxylate (intermediate 19). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
34% | Step 1 : Potassium tert-butoxide (4.49 mL, IM in THF) was added over about5 minutes to (methoxymethyl) triphenylphosphonium chloride (1.42 g, 4.15 mmol) suspended in anhydrous THF (25 mL) at O0C. The resulting suspension was stirred at about this temperature for about 45 minutes at which time, tert-butyl 2-benzyl-4-oxopiperidine-l- <n="111"/>carboxylate (1.Og, 3.46 mmol) dissolved in THF (5 niL) was added. The reaction mixture was allowed to warm to ambient and stir for another 6h. The reaction was quenched by the addition of ammonium chloride solution and then taken up in EtOAc. After washing twice with water and once with brine, the organic portion was dried over magnesium sulfate, filtered and concentrated. The resulting semi-solid residue was purified via silica gel chromatography to give (Z)-tert-butyl 2-benzyl-4-(methoxymethylene)piperidine-l- carboxylate (375 mg, 34%). LCMS (APCI+) m/z 218.1 [M+H]+; Rt = 4.51 min. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76% | With potassium tert-butylate; In 1,2-dimethoxyethane; tert-butyl alcohol; at -10 - 20℃; for 19h;Inert atmosphere; | To a solution of <strong>[193480-28-3]2-benzyl-4-oxo-piperidine-1-carboxylic acid tert-butyl ester</strong> (15 g, 51.8 mmol) (from SYNTECH) in DME (250 mL) under nitrogen atmosphere was simultaneously added toluene-4-sulfonylmethyl isocyanide (15.2 g, 77.7 mmol, in 250 mL DME) and potassium tert-butoxide (156 mL, 1 M in tert-butanol) over 1 h so that the temperature was kept below -10 C. The solution was stirred at -10 C. for 2 h and then allowed to reach room temperature over 16 h. To the reaction mixture was added H2O (400 mL) and the solution was stirred for 20 min and then extracted with DEE (×3) and EtOAc (×3). The combined organic phases were dried over Na2SO4 and evaporated. The residue was purified by column chromatography using EtOAc/heptane (10-60% gradient EtOAc) to yield tert-butyl 2-benzyl-4-cyanopiperidine-1-carboxylate (11.85 g, 76%). 1H NMR (600 MHz, cdcl3) delta 1.38-1.46 (m, 9H), 1.63-2.14 (m, 4H), 2.62-3.33 (m, 4H), 4.17 (m, 1H), 4.48 (m, 1H), 7.11-7.41 (m, 5H); MS m/z 301 (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
To a solution of 2-benzylpiperidin-4-one (BETAPHARMA, 0.868 g, 3 mmol) in anhydrous THF (10 mL) was added LiHMDS (1M solution in THF, 6 mL) dropwise at -78 C. After addition, the mixture was allowed to warm to -30 C. and stirred for 20 min. The mixture was cooled to -78 C. again and 1,1,1-trifluoro-N-phenyl-N-(trifluoromethylsulfonyl)methanesulfonamide (2.144 g, 6 mmol) was added. The mixture was allowed to warm to ambient temperature and stirred for 2 h. The solvent was removed in vacuo and the residue was purified by flash column chromatography on silica gel (eluting with 2% EtOAc in petroleum ether) to give tert-butyl 6-benzyl-4-(((trifluoromethyl)sulfonyl)oxy)-5,6-dihydropyridine-1(2H)-carboxylate as an oil (0.72 g, crude), which was used in the next step without further purification. TLC (eluting with 10% EtOAc/PE) Rf=0.5. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | Into a 5-L round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed <strong>[193480-28-3]tert-butyl 2-benzyl-4-oxopiperidine-1-carboxylate</strong> (5 g, 17.28 mmol, 1.00 equiv), methanol (4 L), acetic acid (2.076 g, 34.57 mmol, 2.00 equiv) and HCOONH4 (43.599 g). The resulting solution was stirred for 0.5 h at room temperature. Then NaBH3CN (2.180 g, 34.69 mmol, 2.01 equiv) was added by batchwise. The resulting solution was stirred overnight at room temperature. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with 200 mL of EA. The resulting mixture was washed with 4x100 mL of brine (sat.). The organic phase was collected and concentrated under vacuum. The solid was dried in an oven under reduced pressure. This resulted in 5 g (100%) of tert-butyl 4-amino-2-benzylpiperidine-1- carboxylate as light yellow oil. LCMS (method C, ESI): RT =0.89 min, m/z =235.0 [M- 56+H]+. |
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