HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methyl chloroformate → 2-(trimethylsilyl)ethyl (S)-2-((R)-3-((R)-(2-(methoxycarbonylamino)propoxy)(3-chlorophenyl)methyl)piperidine-1-carboxamido)-3-cyclohexylpropyl(methyl)carbamate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methyl chloroformate | HCID 6586 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 2-(trimethylsilyl)ethyl (2S)-2-((3R)-3-((1R)-(2-aminopropoxy)(3-chlorophenyl)methyl)piperidine-1-carboxamido)-3-cyclohexylpropyl(methyl)carbamate | HCID 86639461 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 2-(trimethylsilyl)ethyl (S)-2-((R)-3-((R)-(2-(methoxycarbonylamino)propoxy)(3-chlorophenyl)methyl)piperidine-1-carboxamido)-3-cyclohexylpropyl(methyl)carbamate | HCID 86639462 | — |
Reaction Steps
A mixture of crude 2-(trimethylsilyl)ethyl (2S)-2-((3R)-3-((1R)-(2-aminopropoxy)(3-chlorophenyl)methyl)piperidine-1-carboxamido)-3-cyclohexylpropyl(methyl)carbamate (0.1340 g), obtained as, described above, DMAP (0.151 g), DIPEA (2 mL), and methyl chloroformate (0.483 g) in CH2Cl2 was stirred at rt for 2 d. After the reaction mixture was evaporated under reduced pressure, the crude product was purified by reversed-phase HPLC to give 2-(trimethylsilyl)ethyl (S)-2-((R)-3-((R)-(2-(methoxycarbonylamino)propoxy)(3-chlorophenyl)methyl)piperidine-1-carboxamido)-3-cyclohexylpropyl(methyl)carbamate. MS ESI +ve m/z 705 (M+Na).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08487108B2 |
| Source dataset | uspto-grants-2013_07 |
| ORD ID | ord-ea51a4d5993a46a79a0af1d781b69404 |
| Source note | uspto-grants-2013_07 |