1-(m-Tolyl)piperazine → Methyl {8-fluoro-2-[4-(3-methylphenyl)-1-piperazinyl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-3,4-dihydro-4-quinazolinyl}acetate

Participants

Reaction Steps

11.5 g (29.16 mmol) of methyl (2E)-3-{3-fluoro-2-[({[2-methoxy-5-(trifluoromethyl)phenyl]-imino}methylene)amino]phenyl}-2-propenoate (Example 18A), 5.14 g (29.16 mmol) of 1-(3-methylphenyl)piperazine and a spatula tip of silica gel are stirred in 300 ml of dichloromethane at room temperature for 1 hour and then under reflux for 20 hours. The product is obtained after chromatography on silica gel (dichloromethane, dichloromethane/ethyl acetate 10:1, 5:1).

Provenance & Evidence