Structure of 130985-42-1
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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. : | 130985-42-1 |
Formula : | C12H23NO4 |
M.W : | 245.32 |
SMILES Code : | CC(C)(NC(OC(C)(C)C)=O)CC(OCC)=O |
MDL No. : | MFCD18206361 |
InChI Key : | MXMKNMCSDWUFNV-UHFFFAOYSA-N |
Pubchem ID : | 14803048 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 17 |
Num. arom. heavy atoms | 0 |
Fraction Csp3 | 0.83 |
Num. rotatable bonds | 8 |
Num. H-bond acceptors | 4.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 65.63 |
TPSA ? Topological Polar Surface Area: Calculated from |
64.63 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.98 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.74 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.24 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.7 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.49 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.03 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.93 |
Solubility | 2.89 mg/ml ; 0.0118 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.71 |
Solubility | 0.474 mg/ml ; 0.00193 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.55 |
Solubility | 0.696 mg/ml ; 0.00284 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 |
-6.56 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 |
1.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<2.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.57 |
* 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 |
---|---|---|
99% | With water; sodium hydroxide; In tetrahydrofuran; methanol; at 20.0℃; for 19.0h; | (Step 2) 3-(tert-Butoxycarbonylamino)-3-methylbutanoic acid Ethyl 3-(tert-butoxycarbonylamino)-3-methylbutanoate (10.4 g, 42.5 mmol) synthesized in step 1 was dissolved in tetrahydrofuran (200 mL). To the solution, a 1 N aqueous sodium hydroxide solution (100 mL) was added, and the mixture was stirred at room temperature for 16 hours. Methanol (50 mL) was added thereto, and the mixture was further stirred for 3 hours. The organic solvent was distilled off under reduced pressure. To the obtained aqueous solution, 1 N hydrochloric acid (120 mL) was added, followed by extraction with methylene chloride. The organic layer was washed with saturated saline and dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure to obtain the title compound (10.2 g, yield: 99.0%) as an oil substance. 1H-NMR (CDCl3) delta: 4.97 (1H, br s), 2.73 (2H, br s), 1.45 (9H, s), 1.40 (6H, s). MS (APCI) m/z : 216 [(M-H)-]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73.7% | With triethylamine; In dichloromethane; at 20.0℃; for 71.7h; | (Step 1) Ethyl 3-(tert-butoxycarbonylamino)-3-methylbutanoate Ethyl 3-amino-3-methylbutanoate hydrochloride (10.5 g, 57.5 mmol) was dissolved in methylene chloride (100 mL). To the solution, triethylamine (8.19 mL, 5.95 g, 58.8 mmol) and di-tert-butyl dicarbonate (9.41 g, 43.1 mmol) were added, and the mixture was stirred at room temperature for 71.7 hours. Water was added to the reaction mixture, followed by extraction with methylene chloride. The organic layer was washed with water and saturated saline and dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure, and the obtained residue was purified by silica gel column chromatography (Biotage Japan Ltd., eluting solvent: hexane/ethyl acetate = 98/2 to 50/50) to obtain the title compound (10.4 g, yield: 73.7%) as an oil substance. 1H-NMR (CDCl3) delta: 4.91 (1H, br s), 4.14 (2H, q, J = 7.1 Hz), 2.67 (2H, s), 1.43 (9H, s), 1.38 (6H, s), 1.26 (3H, t, J = 7.1 Hz). |
With potassium carbonate; In dichloromethane; water; | To a solution of ethyl 3-amino-3-methylbutanoate hydrochloride (10 g, 55.0 mmol), B0C2O (14.06 mL, 60.6 mmol) in the mixed solvents of dichloromethane (DCM) (100 mL) and water (100 mL) was added potassium carbonate (15.22 g, 1 10 mmol), and stirred overnight. Then the organic phase was washed with water, brine and dried over Na2S04, and concentrated to afford the title compound. LC-MS (ESI): m/z 246 [M+l ]+; 3.20 min (ret time). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
6.45 g | With lithium aluminium tetrahydride; In tetrahydrofuran;Reflux; | To a solution of ethyl 3-((tert-butoxycarbonyl) amino)-3-methylbutanoate (13.5 g, 55.0 mmol) in THF (100 mL) was added L1AIH4 solution (2.0 M, 83 mL) dropwise at 0 C. Then the reaction mixture was refluxed overnight, cooled to r.t, quenched by addition of water (4.5 mL), filtrated, and concentrated to afford the title compound (6.45 g). LC-MS (ESI): m/z 1 18 [M+l ]+; 0.35 min (ret time). |