Dimethylamine → 9-(N,N-Dimethylcarbamyl)-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one

Participants

Reaction Conditions

Reaction Steps

A mixture containing 9-Carboxy-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one (150 mg) and 1,1-carbonyldiimadazole (120 mg) in DMF (5 mL) was heated to 60° C. for 15 rain after which time the reaction was cooled and 2 mL of dimethylamine added. The reaction was allowed to stand at room temperature for 1 hour. To the mixture was then added 10 mL of H2O and the resultant product was collected and dried to yield 9-(N,N-Dimethylcarbamyl)-2-(2-fluorophenyl)-7,8,9,10-tetrahydro-imidazo[1,2-c]-quinazolin-5(6H)-one (Compound 18), m.p.>325° C.

Provenance & Evidence