Hydrazine hydrate (1:1) → HCID 178489938, compound

Participants

Reaction Steps

To a suspension of 4-hydroxy-3-[1-oxo-2-(2,4-dimethoxyphenyl)ethyl]-1-phenyl-1,8-naphthyridin-2 (1H)-one (100 mg, 0.24 mmol, prepared in Synthetic Example 24) in DMF (2 ml) was added hydrazine monohydrate (80%, 50 μl, 1.25 mmol, 5.2 eq.), and the mixture was treated in the same manner as in Example 24 to give 3-(2,4-dimethoxybenzyl)-5-phenyl-1H-pyrazolo[4,3-c][1,8]naphthyridin-4 (5H)-one (87 mg, 87%).

Provenance & Evidence