1-Piperazinecarbothioamide, 4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-N-phenyl- 2-(4-Phenylthiocarbamoylpiperazin-1-yl)-4-amino-6,7-dimethoxyquinazoline 4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-N-phenyl-1-piperazinecarbothioamide 79221-43-5