Diethylcis-4,8-dioxo-3,4,7,8-tetrahydro-1H,5H-2,6-dioxa-3a,4a,7a,8a-tetraazacyclopenta[def]fluorene-8b,8c-dicarboxylate

Abstract

The title compound, C14H18N4O8, is a glycoluril derivative, composed of two five-membered rings in envelope conformations and two six-membered rings in chair conformations. In the crystal structure, inter­molecular C—H⋯O hydrogen bonds link the mol­ecules into a three-dimensional network. One methyl group and the H atoms on the adjacent C atom are disordered over two positions; the site-occupancy factors are ca 0.62 and 0.38.