Date Published: February 01, 2012
Publisher: International Union of Crystallography
Author(s): Ying Yan, Guilong Zhang, Zhenming Yin.
In the title molecule, C20H20ClN3O4, both the pyrrole N—H groups adopt a syn conformation with respect to the carbonyl groups. In the crystal, intermolecular N—H⋯O hydrogen bonds link the molecules into layers parallel to (102).
For the crystal structures of related pyrrole-2-carboxylate derivatives, see: Sessler et al. (2003 ▶); Yin & Li (2006 ▶); Maeda et al. (2007 ▶); Cui et al. (2009 ▶).