反应详情

To a suspension of 4-hydroxy-3-[1-oxo-3-(4-nitrophenyl)propyl]-1-phenyl-1,8-naphthyridin-2 (1H)-one (104 mg, 0.25 mmol, prepared in Synthetic Example 7) in DMF (2 ml) was added hydrazine monohydrate (80%, 40 μl, 11.0 mmol, 4.0 eq.), and the mixture was treated in the same manner as in Example 9 to give 3-[2-(4-nitrophenyl)ethyl]-5-phenyl-1H-pyrazolo[4,3-c][1,8]naphthyridin-4 (5H)-one (100 mg, 97%).

1. additionthe mixture was treated in the same manner as in Example 9