Bromine → HCID 117770538, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 4-(3-amino-4-oxo-1H-pyrazolo[4,3-c]pyridin-5(4H)-yl)-3,5-difluorobenzonitrile obtained in Step B (0.60 g) and acetic acid (40 mL) was slowly added bromine (0.21 mL) at 80° C., and the reaction mixture was stirred at 100° C. for 1 hr. The solvent was evaporated under reduced pressure, and the residue was recrystallized from acetic acid to give the title compound (0.81 g).

Provenance & Evidence