title: Methyl 4,5-diacet-oxy-1-oxo-2-phenyl-perhydro-4,6-epoxy-cyclo-penta-[c]pyridine-7-carboxyl-ate ethanol solvate.
abstract: The title compound, the product of an acid-catalysed Wagner-Meerwein skeletal rearrangement, crystallizes as an ethanol monosolvate, C(20)H(21)NO(8)·C(2)H(6)O. The title mol-ecule comprises a fused tricyclic system containing two five-membered rings (cyclo-pentane and tetra-hydro-furan) in the usual envelope conformations and one six-membered ring (piperidinone) adopting a flattened twist-boat conformation.
authors.forename: Atash V
authors.initials: AV
authors.lastname: Gurbanov
authors.forename: Eugeniya V
authors.initials: EV
authors.lastname: Nikitina
authors.forename: Inga K
authors.initials: IK
authors.lastname: Airiyan
authors.forename: Vladimir P
authors.initials: VP
authors.lastname: Zaytsev
authors.forename: Victor N
authors.initials: VN
authors.lastname: Khrustalev