Water → HCID 22267231, compound

Participants

Reaction Steps

A solution of 2-[6-[(methylamino)methyl]-7-chloro-2-oxo-4-phenyl-2H-chromen-3-yl]-N-[4-chloro-2-(trifluoromethyl)phenyl]acetamide (Example 180)(0.20 g) in THF (5 ml) was combined with triethylamine (0.11 ml) and acetyl chloride (0.033 ml), and stirred for 3 hours. The reaction solution was combined with water and extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium bicarbonate followed by a saturated brine, and then dried over magnesium sulfate, and concentrated under reduced pressure. The resultant residue was purified by column chromatography (packing: silica gel, eluent: ethyl acetate-hexane=1:4), and further recrystallized from ethyl acetate-diisopropyl ether to obtain the title compound as a colorless crystal (105 mg, 48%). Melting point: 199-201° C.

Provenance & Evidence