Decyl isocyanate → (R)-tert-butyl 2-(benzyloxycarbonylamino)-3-((R)-2,3-bis(decylcarbamoyloxy)propylthio)propanoate

HRID 2205051Notes

Reaction equation

[CH2:1]([O:8][C:9]([NH:11][C@@H:12]([CH2:20][S:21][CH2:22][C@H:23]([OH:26])[CH2:24][OH:25])[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:27]([N:37]=[C:38]=[O:39])[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36]>C1C=CC=CC=1.CN(C1C=CN=CC=1)C>[CH2:1]([O:8][C:9]([NH:11][C@@H:12]([CH2:20][S:21][CH2:22][C@H:23]([O:26][C:38](=[O:39])[NH:37][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36])[CH2:24][O:25][C:38](=[O:39])[NH:37][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH3:36])[C:13]([O:15][C:16]([CH3:17])([CH3:18])[CH3:19])=[O:14])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 40 °C

Procedure

A solution of (R)-tert-butyl 2-(benzyloxycarbonylamino)-3-((R)-2,3-dihydroxypropylthio)propanoate (13) was stirred in anhydrous benzene (0.1 M) under nitrogen at room temperature. Decyl isocyanate (2.02 eq) and DMAP (dimethylaminopyridine, 2.02 eq) were added and the resulting mixture heated to 40° C. and stirred overnight. The reaction mixture was concentrated to remove benzene then reconstituted in DCM and purified on a COMBIFLASH® system (ISCO) using a gradient of 0-50% EtOAc/Hex to give the title product as a colorless oil.

Workup

concentrationThe reaction mixture was concentrated
customto remove benzene
custompurified on a COMBIFLASH® system (ISCO)

Sources & evidence

ORD record: ord-20366cdf03074857a605f123df832083
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09365506B2

Reaction notes

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