(S)-[1-[[[(1,1-Dimethylethoxy)carbonyl]amino]methyl]-2-phenylethyl]carbamic acid phenylmethyl ester → (S)-tert-Butyl (2-amino-3-phenylpropyl)carbamate
反応式
C1(COC(=O)[NH:10][C@H:11]([CH2:19][NH:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)C=CC=CC=1>C(O)C.[Pd]>[CH3:27][C:24]([O:23][C:21](=[O:22])[NH:20][CH2:19][C@@H:11]([NH2:10])[CH2:12][C:13]1[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1)([CH3:25])[CH3:26]参加物
4
実験手順
A mixture of (S)-[1-[[[(1,1-dimethylethoxy)carbonyl]amino]methyl]-2-phenylethyl]carbamic acid phenylmethyl ester (2.89 g,7.51 mmol) and 10% Pd-C (0.171 g) in ethanol (70 ml) was stirred under hydrogen for 2 days. The reaction mixture was filtered through celite and the filtrate was evaporated to leave the title compound (2.18 g) as a solid, nmr(δ,CDCl3) includes 1.43(s,9H), 2.5-2.62 and 2.83(m and dd,2H), 3.0 and 3.1-3.25(m,2H), 3.25-3.4(m,1H), 5.0-5.15(m,1H), 7.15-7.35(m,5H).