Nifedipine-pyrazine (2/1)

Abstract

In the title compound, 2C17H18N2O 6·C4H4N2 [systematic name: 3,5-dimethyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5- dicarboxylatepyrazine (2/1)], the complete pyrazine molecule is generated by crystallographic inversion symmetry. The center of the pyrazine ring lies on an inversion center. The nifedipine molecules are linked into chains along the c axis through N-H⋯O hydrogen bonds, while the pyrazine molecules are organized in the structure through van der Waals interactions.