反应详情

Hydrazine hydrate (0.152 mL) was added to a stirred solution of methyl trans-4-(4-{[methoxy(oxo)acetyl]amino}phenyl)cyclohexanecarboxylate (913 mg) in EtOH (25 mL). The mixture was stirred for 2 hours. The precipitate was filtered off, washed with EtOH, and dried under vacuum to give the title compound (Intermediate 44, 277 mg) as a solid; 1HNMR δ 10.43 (1H, s), 7.67 (2H, d), 7.17 (2H, d), 4.52 (2H, s), 3.59 (3H, s), 2.53-2.33 (2H+DMSO, m), 1.97 (2H, m), 1.81 (2H, m), 1.46 (4H, m); MS m/e MH+ 320.

1. filtrationThe precipitate was filtered off
2. washwashed with EtOH
3. customdried under vacuum