[Cl:1][C:2]1[C:3]([CH:13]=[CH:14][N:15](C)C)=[C:4]([N+]([O-])=O)[C:5]([O:8][CH3:9])=[N:6][CH:7]=1.[H][H]>C(OCC)(=O)C.[Ni]>[Cl:1][C:2]1[CH:7]=[N:6][C:5]([O:8][CH3:9])=[C:4]2[NH:15][CH:14]=[CH:13][C:3]=12To a solution of Example 108C (12 g, 46.6 mmol) in ethyl acetate (150 mL) was added Raney-Ni (20.0 g, 4.66 mmol), and the reaction mixture was stirred for 20 hours at room temperature under 30 atm. hydrogen. The reaction mixture was filtered and rinsed with ethyl acetate. The filtrate was concentrated to a small volume, and the precipitates were collected by filtration and dried to provide the title compound (10 g, 93% yield).
Wird geladen…