Iodine → 2-(3,5-dimethyl-4-(2-morpholinoethoxy)phenyl)-5,7-dimethoxyquinazolin-4(3H)-one

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-amino-4,6-dimethoxybenzamide (451 mg, 2.3 mmol) and 3,5-dimethyl-4-(2-morpholin-4yl-ethoxy)-benzaldehyde (550 mg, 2.09 mmol) in N,N-dimethyl formamide (20 mL), iodine (636 mg, 2.5 mmol) and potassium carbonate (288 mg, 2.09 mmol) were added and the reaction mixture was stirred at 70° C. for 48 h. The reaction mixture was poured into ice. The mixture was extracted with ethyl acetate. The organic layer was washed with water, brine and dried over anhydrous Na2SO4. Removal of the solvent gave the crude product was purified by column chromatography and converted to the hydrochloride salt of 2-(3,5-dimethyl-4-(2-morpholinoethoxy)phenyl)-5,7-dimethoxyquinazolin-4(3H)-one (40 mg, 4%) as an off-white solid. Selected data: MS (ES) m/z: 440.1; MP 185-187° C. (HCl salt).

Provenance & Evidence