1,4-Bis(3,4,5-trimethoxybenzoyl)-N-(phenylmethyl)-2-piperazinecarboxamide 129477-62-9 2-Piperazinecarboxamide, 1,4-bis(3,4,5-trimethoxybenzoyl)-N-(phenylmethyl)- N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2''-benzoylamidopiperazine