(Z,Z)-3,6-Bis[(3,4,5-trimethoxyphenyl)-methylene]piperazine-2,5-dione

Abstract

The title compound, C24H26N2O8, is a derivative of neihumicin, a cytotoxic antibiotic from Micromonospora neihuensis. The compound crystallizes as discrete molecules with crystallographic inversion symmetry. Intermolecular N-HO hydrogen bonds yield polymeric chains along the c axis. The trimethoxyphenylmethylene side chain is found to be in a Z configuration about the C=C double bond.