Acta Crystallographica Section E (Mar 2010)
Diethyl 4-[4-(dimethylamino)phenyl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
Abstract
In the title compound, C21H28N2O4, the dihydropyridine ring adopts a flattened boat conformation. The mean plane of the dihydropyridine ring and the attached benzene ring form a dihedral angle of 85.1 (1) Å. One of two ethyl fragments is disordered between two conformations in a 0.67 (4):0.33 (4) ratio. In the crystal structure, molecules related by translation along the a axis are linked into chains via intermolecular N—H...O hydrogen bonds.