Sodium Sulfide → HCID 178522503, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of N-(8-methoxy-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl)nicotinamide (example 2-22) 3.50 g (10.9 mmol) and sodium sulfide 4.25 g (54.5 mmol) in 1-methyl-2-pyrrolidinone 10 mL was heated to 160° C. for 4 hours (LC -MS indicated complete consumption of the starting material). The mixture was cooled to room temperature and volatile side products were evaporated. The mixture was partitioned between chloroform and 0.5N NaOH solution. The aqueous layer was neutralized and the formed precipitate was collected to give the title compound 2.34 g as off-white solid. Yield 69.9%.

Provenance & Evidence