Methyl 4-(2-chloro-5-nitrophenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate

Linden A., Safak C., Aydin F.

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, vol.60, 2004 (SCI-Expanded) identifier identifier identifier


The title compound, C20H21ClN2O5, has potential calcium modulatory properties. The 1,4-dihydropyridine ring has the usual shallow boat conformation. The 2-chloro-5-nitrophenyl ring is oriented such that the chloro substituent is in a synperiplanar orientation with respect to the 1,4-dihydropyridine ring plane, while the nitro substituent sits over the 1,4-dihydropyridine ring. The cyclohexenone ring has a conformation that is approximately half-way between that of an envelope and that of a half-chair. The molecules are linked into chains by intermolecular N-H...O hydrogen bonds.