Rac-1-benzyl-4-(2-nitro-1-phenyl-ethyl)-piperidine-4-carboxylic acid ethyl ester → Rac-4-(2-amino-1-phenyl-ethyl)-1-benzyl-piperidine-4-carboxylic acid ethyl ester
反応式
[CH2:1]([O:3][C:4]([C:6]1([CH:19]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH2:20][N+:21]([O-])=O)[CH2:11][CH2:10][N:9]([CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:8][CH2:7]1)=[O:5])[CH3:2]>CCO.[Ni]>[CH2:1]([O:3][C:4]([C:6]1([CH:19]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH2:20][NH2:21])[CH2:11][CH2:10][N:9]([CH2:12][C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=2)[CH2:8][CH2:7]1)=[O:5])[CH3:2]参加物
4
実験手順
A solution of rac-1-benzyl-4-(2-nitro-1-phenyl-ethyl)-piperidine-4-carboxylic acid ethyl ester (3.18 g, 8 mmol) in dry EtOH (240 mL) was hydrogenated in the presence of Ra—Ni (3 g) at 60 bar at 55° C. for 3 h. After cooling and decompression of the reaction vessel, the mixture was filtered over celite and the filtrate evaporated to leave the title compound (2.9 g, 99%) as a clear oil. MS: m/e=367.4 (M+H).