Acetic Anhydride → HCID 69084049, compound

Participants

Reaction Conditions

Reaction Steps

2,7-Diamino-4-(3-bromo-4,5-dimethoxy-phenyl)-4H-benzo[h]chromene-3-carbonitrile (10) (45 mg, 0.1 mmol) was taken in pyridine (2 ml) at 0° C., charged with acetic anhydride (11 mg, 0.11 mmol) and stirred further at 0° C. under LC-MS control. The reaction mixture was diluted with water (10 ml) under stirring, stirred further at room temperature for 2 h, the precipitates were collected by filtration, washed with water and dried to get the title compound (46 mg, 93%).

Provenance & Evidence