Acetic Anhydride → HCID 131730972, compound

Participants

Reaction Steps

25 mg of 4-(benzylamino)-6-{[4-(1,4-diazepan-1-yl)phenyl]amino}pyridine-3-carboxyamide (the compound of Example 226) was dissolved in 1.5 mL of dichloromethane, to which, under ice cooling, 15.1 mg of acetic anhydride was added, and stirred for 30 minutes. To the reaction mixture 1.5 mL of ammonia water was added, extracted with chloroform, the extract was washed with saturated saline, and dried on anhydrous sodium sulfate. The solvent was evaporated, and the residue was purified by silica gel thin layer chromatography (chloroform:methanol=10:1), recrystallized from chloroform-methanol-diethylether to obtain 20 mg (73%) of the title compound as light brown needle crystals.

Provenance & Evidence