title: 14-Eth-oxy-4,6-dimethyl-9-phenyl-8,12-dioxa-4,6-diaza-tetra-cyclo-[8.8.0.0(2,7).0(13,18)]octa-deca-2(7),13,15,17-tetra-ene-3,5,11-trione.
abstract: In the title compound, C23H20N2O6, the fused pyrone and pyran rings each adopt a sofa conformation. The dihedral angle between the mean planes of the pyran and phenyl rings is 61.9 (1)°. In the crystal, mol-ecules are linked by two pairs of C-H⋯O hydrogen bonds, forming dimers. These dimers are linked via a third C-H⋯O hydrogen bond, forming a two-dimensional network parallel to (10-2).
authors.affiliation: Department of Physics, Presidency College, Chennai 600 005, India.
authors.forename: G
authors.initials: G
authors.lastname: Jagadeesan
authors.forename: D
authors.initials: D
authors.lastname: Kannan
authors.forename: M
authors.initials: M
authors.lastname: Bakthadoss
authors.forename: S
authors.initials: S
authors.lastname: Aravindhan