Acta Cryst. (2003). E59, o306-o307 [ doi:10.1107/S1600536803003015 ]
Abstract: In the title compound, C23H28N2O9, the substituted 1,4-dihydropyridine ring has a flat-boat conformation. The dihedral angle between the mean planes of the 1,4-dihydropyridine and substituted phenyl rings is 88.10 (9)°. The 3-nitro substituent on the phenyl ring is rotated from coplanarity with the ring by only 3.2 (2)°.
Copyright © International Union of Crystallography