Hydrochloric Acid → HCID 18928130, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 2-ethoxycarbonyl-1-methyl-7-methylsulfonylimidazo[1,2-a]quinoxalin-4(5H)-one (430 mg, 1.23 mmol) in 2M potassium hydroxide (15 ml) was stirred at 80° C. for 6 h. The reaction mixture was added water (10 ml) and pH adjusted to pH 7 with 1N hydrochloride acid. The precipitate was filtered off and washed with water to give 100 mg (25%) of the title compound as the potassium salt. M.p. 228° C.

Provenance & Evidence