(S)-benzyl 2-amino-3-(benzyloxy)propanoate → N-(2-acetylthiomethyl-1-oxo-3-phenylbutyl)-O-benzylserine benzyl ester
Reaction equation
[C:1]([S:4][CH2:5][CH:6]([CH:10]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH3:11])[C:7]([OH:9])=O)(=[O:3])[CH3:2].[CH2:18]([O:25][C:26](=[O:38])[C@H:27]([CH2:29][O:30][CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[NH2:28])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>>[CH2:18]([O:25][C:26](=[O:38])[C@H:27]([CH2:29][O:30][CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[NH:28][C:7](=[O:9])[CH:6]([CH2:5][S:4][C:1](=[O:3])[CH3:2])[CH:10]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[CH3:11])[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1Participants
3
Procedure
Using the procedure described in Example 60, starting with 2-acetylthiomethyl-3-phenylbutanoic acid and O-benzylserine benzyl ester, and after purification by chromatography, eluting with a hexane/ethyl acetate (8:2 by volume) mixture, N-(2-acetylthiomethyl-1-oxo-3-phenylbutyl)-O-benzylserine benzyl ester is obtained in a 62% yield, the characteristics of which are as follows: Rf =0.16 [hexane/ethyl acetate (8:2 by volume)].
Workup
- customafter purification by chromatography
- washeluting with a hexane/ethyl acetate (8:2 by volume) mixture
Sources & evidence
- ORD record
- ord-f5b2eb06df6e4d6986086a260bf56b77
- Source dataset
- uspto-grants-1997_01
- Patent number
- US05591891
Reaction notes
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