3,3-dimethyl-10-(4-methoxyphenyl)-9-(4-nitrophenyl)-1,2,3,4,5,6,7,8,9,10-decahydroacridine-1,8-dione

The title compound, C28H28N2O5, consists of a partially hydrogenated acridine ring system with two substituted phenyl substituents on the dihydropyridine ring which are both nearly perpendicular to the mean plane of the acridine unit [dihedral angles of 81.3 (1) and 89.6 (1)degrees between the central ring of acridine and the methoxyphenyl and nitrophenyl rings, respectively]. The dihydropyridine ring is almost planar, whereas both the outer unsymmetrical six-membered rings adopt half-chair conformations.