(S)-tert-butyl 3-((2-cyano-3-nitrophenoxy)methyl)piperidine-1-carboxylate → (S)-tert-butyl 3-((3-amino-2-cyanophenoxy)methyl)piperidine-1-carboxylate
反応式
[C:1]([C:3]1[C:23]([N+:24]([O-])=O)=[CH:22][CH:21]=[CH:20][C:4]=1[O:5][CH2:6][C@H:7]1[CH2:12][CH2:11][CH2:10][N:9]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:8]1)#[N:2]>CCOC(C)=O.[Pd]>[NH2:24][C:23]1[C:3]([C:1]#[N:2])=[C:4]([CH:20]=[CH:21][CH:22]=1)[O:5][CH2:6][C@H:7]1[CH2:12][CH2:11][CH2:10][N:9]([C:13]([O:15][C:16]([CH3:19])([CH3:17])[CH3:18])=[O:14])[CH2:8]1参加物
4
実験手順
To a solution of (S)-tert-butyl 3-((2-cyano-3-nitrophenoxy)methyl)piperidine-1-carboxylate (Example 1e, 13 g, 36 mmol) in EtOAc (200 mL) was added Pd/C (3.82 g, 3.6 mmol 10% solution) and the mixture was stirred at room temperature under H2 for 6 hours until the reaction was complete. The mixture was filtered and concentrated. The residue was purified by chromatography on silica gel (EtOAc/hexanes) to yield the title compound (11 g, 92.3%). (M+H)−Boc=232.