1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(1-oxo-3-phenyl-2-propenyl)piperazine 2-(4-Cinnamoylpiperazin-1-yl)-4-amino-6,7-dimethoxyquinazoline 70842-66-9 Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-(1-oxo-3-phenyl-2-propenyl)-