1-((4-Oxo-2-(3,4,5-trimethoxyphenyl)-3(4H)-quinazolinyl)acetyl)-4-phenylpiperazine 83409-12-5 BRN 4616635 Piperazine, 1-((4-oxo-2-(3,4,5-trimethoxyphenyl)-3(4H)-quinazolinyl)acetyl)-4-phenyl-