N-(tert-butoxycarbonyl)glycine → N-t-Butoxycarbonylglycyl-3(R)-methyl-beta-alanine benzyl ester
反応式
[C:1]([O:5][C:6]([NH:8][CH2:9][C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:13]([O:20][C:21](=[O:26])[CH2:22][C@@H:23]([CH3:25])[NH2:24])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>CCCCCC.CCOC(C)=O>[CH2:13]([O:20][C:21](=[O:26])[CH2:22][C@@H:23]([CH3:25])[NH:24][C:10](=[O:12])[CH2:9][NH:8][C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1参加物
4
実験手順
N-(t-Butoxycarbonyl)glycine 14-3 (Aldrich) was coupled with 3(R)-methyl-β-alanine benzyl ester 0.5 H2SO4 11-7 (Celgene) according to the procedure described for the preparation of 14-5. The title product 15-1 was then obtained by chromatography (silica, hexane/EtOAc 2:3).