Structure of 174799-52-1
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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. : | 174799-52-1 |
Formula : | C14H22N2O2 |
M.W : | 250.34 |
SMILES Code : | CC(C)(C)OC(=O)NCCNCC1=CC=CC=C1 |
MDL No. : | MFCD04114275 |
InChI Key : | ZSJCBAQDXIZTTC-UHFFFAOYSA-N |
Pubchem ID : | 10634443 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 18 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.5 |
Num. rotatable bonds | 8 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 72.37 |
TPSA ? Topological Polar Surface Area: Calculated from |
50.36 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
3.13 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.99 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.15 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.07 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.06 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.28 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.36 |
Solubility | 1.08 mg/ml ; 0.00432 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.67 |
Solubility | 0.531 mg/ml ; 0.00212 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.62 |
Solubility | 0.00601 mg/ml ; 0.000024 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) |
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) |
Yes |
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 |
-6.41 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<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.06 |
* 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 |
---|---|---|
92% | Stage #1: at 20℃; Molecular sieve Stage #2: at -10 - 20℃; for 16 h; |
Preparation 63 Synthesis of tert-butyl 2-(benzylamino)ethylcarbamate (A) To a solution of tert-butyl 2-aminoethylcarbamate (6.4 g, 40.0 mmol) in methanol (60 mL) was added benzaldehyde (4.7 g, 44.0 mmol) and molecular sieve 3 Å. After stirring at ambient temperature overnight, the mixture was cooled down to ca. -10° C. (ice/salt bath) and treated portion wise with NaBH4 (9.1 g, 240.0 mmol) over 30 min. After complete addition, the bath was removed and the reaction mixture stirred at ambient temperature for 16 h. The solvent was evaporated and the residue taken into EtOAc (150 mL) and poured into water (100 mL). The organic layer was extracted with 0.5 N HCl (3*100 mL). The combined aqueous solution was cooled to 0° C., basified with sat. NaHCO3 and extracted with CHCl3 (3*100 mL). The combined organic layers were washed with brine (200 mL). After drying over MgSO4 and filtering, the solvent was evaporated in vacuo to give compound A (9.2 g, 36.8 mmol, 92percent) as a colorless oil. LC-MS [M+H] 251.2 (C14H22N2O2+H, calc: 251.3). TLC Rf (DCM/MeOH 9:1): 0.30. |
92% | Stage #1: at 20℃; molecular sieve 3Å Stage #2: at -10 - 20℃; for 16.5 h; |
Example 34: Synthesis of N-((S)-l-{2-[(Dihydrocodein-6-enyloxycarbonyl)-methylamino]- ethylcarbamoyl-4-guanidino}-butyl)-malonamic acid (Compound KC-4)Preparation 63: Synthesis of tert-butyl 2-(benzylamino)ethylcarbamate (A)To a solution of tert-butyl 2-aminoethylcarbamate (6.4 g, 40.0 mmol) in methanol (60 mL) was added benzaldehyde (4.7 g, 44.0 mmol) and molecular sieve 3A. After stirring at ambient temperature overnight, the mixture was cooled down to ca. -10 °C (ice/salt bath) and treated portion wise with NaBH4 (9.1 g, 240.0 mmol) over 30 min. After complete addition, the bath was removed and the reaction mixture stirred at ambient temperature for 16 h. The solvent was evaporated and the residue taken into EtOAc (150 mL) and poured into water (100 mL). The organic layer was extracted with 0.5 N HC1 (3 x 100 mL). The combined aqueous solution was cooled to 0 °C, basified with sat. NaHC03 and extracted with CHC13 (3 x 100 mL). The combined organic layers were washed with brine (200 mL). After drying over MgS04 and filtering, the solvent was evaporated in vacuo to give compound A (9.2 g, 36.8 mmol, 92percent) as a colorless oil. LC-MS [M+H] 251.2 (C14H22N2O2 +H, calc: 251.3). TLC Rf (DCM/MeOH 9:1): 0.30. Compound A was used without further purification. |
92% | Stage #1: at 20℃; Molecular sieve 3 Å Stage #2: With sodium tetrahydroborate In methanol at -10 - 20℃; for 16.5 h; Cooling with ice |
Preparation 63: Synthesis of tert-butyl 2-(benzylamino)ethylcarbamate (A)To a solution of tert-butyl 2-aminoethylcarbamate (6.4 g, 40.0 mmol) in methanol (60 mL) was added benzaldehyde (4.7 g, 44.0 mmol) and molecular sieve 3A. After stirring at ambient temperature overnight, the mixture was cooled down to ca. -10 °C (ice/salt bath) and treated portion wise with NaBH4 (9.1 g, 240.0 mmol) over 30 min. After complete addition, the bath was removed and the reaction mixture stirred at ambient temperature for 16 h. The solvent was evaporated and the residue taken into EtOAc (150 mL) and poured into water (100 mL). The organic layer was extracted with 0.5 N HC1 (3 x 100 mL). The combined aqueous solution was cooled to 0 °C, basified with sat. NaHC03 and extracted with CHC13 (3 x 100 mL). The combined organic layers were washed with brine (200 mL). After drying over MgS04 and filtering, the solvent was evaporated in vacuo to give compound A (9.2 g, 36.8 mmol, 92percent) as a colorless oil. LC-MS [M+H] 251.2 (C14H22N2O2 +H, calc: 251.3). TLC Rf (DCM/MeOH 9:1): 0.30. Compound A was used without further purification. |
92% | Stage #1: at 20℃; Molecular sieve Stage #2: at -10 - 20℃; for 16.5 h; |
To a solution of tert-butyl 2-aminoethylcarbamate (6.4 g, 40.0 mmol) in methanol (60 mL), Benzaldehyde (4.7 g, 44.0 mmol)And molecular sieves 3 Å were added.After stirring overnight at ambient temperature, the mixture was cooled to about -10 ° C. (ice / salt bath) and treated in portions with NaBH 4 (9.1 g, 240.0 mmol) for 30 minutes. After all addition, the bathtub was removed and the reaction mixture was stirred at ambient temperature for 16 hours. The solvent was evaporated and the residue was taken up in EtOAc (150 mL) and poured into water (100 mL). The organic layer was extracted with 0.5 N HCl (3 × 100 mL). The combined aqueous solution was cooled to 0 ° C., basified with saturated NaHCO 3 and extracted with CHCl 3 (3 × 100 mL). The combined organic layers were washed with brine (200 mL). After drying and filtering over MgSO 4, the solvent was evaporated under reduced pressure to give compound A (9.2 g, 36.8 mmol, 92percent) as a colorless oil. |
51% | Stage #1: at 20℃; for 2 h; Stage #2: at 0 - 20℃; |
Example 3Atert-butyl [2-(benzylamino)ethyl]carbamate; 2.0 g (18.4 mmol) benzaldehyde and 3.32 g (20.7 mmol) N-Boc-ethylendiamine are dissolved in 25 ml methanol. The mixture is stirred 2 h at rt before cooled to 00C and 3.57 g (94.2 mmol) sodium borohydride and water are added to generate a solution, which is stirred over night at rt. Solvents are removed in vacuo and the residue is dissolved in dichloromethane and washed with brine, dried over magnesium sulfate and concentrated in vacuo. The crude product is purified by reverse phase HPLC (water / acetonitrile) to afford 2.4 g (51percent of th.) of the title compound.HPLC (method 1): R, = 3.70 min; MS (ESIpos): m/z = 251 (M+H)+1H-NMR (400 MHz, DMSOd6): δ = 7.30 (m, 4H), 7.21 (m, IH), 6.72 (m, IH), 3.68 (s, 2H), 3.02 (m, 2H), 2.53 (m, 2H), 2.08 (bs, IH), 1.37 (s, 9H). |
23% | Stage #1: With sodium tris(acetoxy)borohydride; magnesium sulfate; triethylamine In 1,2-dichloro-ethane at 20℃; for 16 h; Stage #2: With water; sodium hydrogencarbonate In 1,2-dichloro-ethane |
To a solution of tert-butyl 2-aminoethylcarbamate (3.7 g, 22.3 mmol), benzaldehyde (2.36 g, 22.3 mmol) and MgSO4 (1.33 g) in 1,2-dicholoroethane (300 mL) and Et3N (3.1 mL, 22.3 mmol) at RT was added NaHB(AcO)3. The mixture was stirred (RT, 16 h) and filtered. The solution was washed with saturated NaHCO3 (200 ml), dried over MgSO4 and concentrated under reduced pressure. The crude product was purified by chromatography on silica gel, eluting with MeOH-DCM (0-10percent) to afford tert-butyl 2-(benzylamino)ethylcarbamate (1.4 g, 23percent). Mass calculated for C14H22N2O2=250.34; found: [M+H]+=251.3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | at 20℃; for 72 h; | 55 (15.861 g, 105.58 mmol) was dissolved in eOH at rt. To this stirred solution was added 2-(tert- butoxycarbonyloxyimino)-2-phenylacetonitrile (26.00g, 105.58 mmol, 1 eq), in portions, allowing dissolution before next addition. The resulting yellow solution was stirred at rt for 3 days (over weekend) before removal of all volatiles under reduced pressure. The crude residue was dissolved in EtOAc (300 mL) before washing with aq. 1 NaOH (2 x 100 mL). The combined aqueous layers were again washed with EtOAc (100 mL). Combining and concentrating the organic portions gave 29.8g of crude product. This was further purified by FCC (eluent DCIWPE 1 :1 to load column, continued until impurities wash off, then 100percent DC , followed eOH/DC 1 :1 0). This gave 25.3g (96percent) of pale yellow oil. |
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