title: 2-Hy-droxy-5-[(E)-2-methyl-benzyl-idene]-8-(2-methyl-phen-yl)-9-phenyl-3,10-diaza-hexa-cyclo-[10.7.1.1(3,7).0(2,11).0(7,11).0(16,20)]henicosa-1(20),12,14,16,18-pentaen-6-one.
abstract: In the title compound, C40H34N2O2, the central piperidine ring adopts a half-chair conformation and the fused pyrrolidine rings adopt twisted envelope (with the C atom bearing the methylphenyl ring as the flap atom) and envelope (with the C atom bound to the N atom, common to the pyridinone and pyrrolidine rings being the flap atom) conformations. The mol-ecular structure features weak intra-molecular N-H⋯O and C-H⋯O inter-actions. In the crystal, O-H⋯O hydrogen bonds generate a C(7) chain along the b-axis direction. C-H⋯O inter-actions also occur.
authors.affiliation: Department of Chemistry, College of Sciences, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia.
authors.forename: Abdulrahman I
authors.initials: AI
authors.lastname: Almansour
authors.forename: Raju Suresh
authors.initials: RS
authors.lastname: Kumar
authors.forename: Natarajan
authors.initials: N
authors.lastname: Arumugam
authors.forename: Hasnah
authors.initials: H
authors.lastname: Osman
authors.forename: J
authors.initials: J
authors.lastname: Suresh