Hydrazine hydrate (1:1) → 4-[1-Benzyl-4-(3-methoxy-phenyl)-piperidin-4-yl]-benzoic acid hydrazide
反応式
CO[C:3](=[O:31])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([O:29][CH3:30])[CH:24]=3)[CH2:15][CH2:14][N:13]([CH2:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:12][CH2:11]2)=[CH:6][CH:5]=1.O.[NH2:33][NH2:34]>CO>[CH2:16]([N:13]1[CH2:12][CH2:11][C:10]([C:7]2[CH:6]=[CH:5][C:4]([C:3]([NH:33][NH2:34])=[O:31])=[CH:9][CH:8]=2)([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([O:29][CH3:30])[CH:24]=2)[CH2:15][CH2:14]1)[C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1参加物
4
実験手順
To a solution of 4-[1-benzyl-4-(3-methoxy-phenyl)-piperidin-4-yl]-benzoic acid methyl ester (9.5 g, 22.9 mmol) in methanol (60 mL) was added hydrazine hydrate (8 mL). The reaction mixture was heated to reflux for 36 hours. The mixture was cooled to room temperature and concentrated. The residue was dissolved in toluene (50 mL) and concentrated under vacuum, and 4-[1-Benzyl-4-(3-methoxy-phenyl)-piperidin-4-yl]-benzoic acid hydrazide was obtained in quantitative yield. The residue was used in the subsequent steps without purification. 1HNMR (400 MHz, CD3OD) δ 7.82 (d, 1H), 7.67 (d, 1H), 7.39-7.05 (comp, 8H), 6.86 (d, 1H), 6.80 (s, 1H), 6.67 (d, 1H), 3.69 (s, 3H), 3.38 (s, 2H), 2.62-2.37 (comp, 8H); MS (M+1) 416.3.