Hydrazine hydrate (1:1) → HCID 117770577, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-bromo-4-chloro-1-(3-methylbutan-2-yl)-2-oxo-1,2-dihydropyridine-3-carbonitrile obtained in Step F (386 mg) in ethanol (6.0 mL) was added hydrazine monohydrate (0.094 mL) at room temperature. The reaction mixture was heated at 90° C. for 1 hr, and cooled to room temperature. The reaction mixture was poured into ice water, and the mixture was neutralized with saturated aqueous sodium hydrogen carbonate solution, and extracted with dichloromethane. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure to give the title compound (332 mg).

Provenance & Evidence