title: 5,8-Dimeth-oxy-3,9-dimethyl-3a,4,9,9a-tetra-hydro-4,9-ep-oxy-naphtho-[2,3-d]isoxazole.
abstract: The title compound, C15H17NO4, is the exo isomer with a syn arrangement of the O atom in the isoxazole ring to the methyl group of the bicyclic alkene. The dihedral angle between the isoxazole ring and the benzene ring is 7.42 (9)°. In the crystal, weak C-H⋯O hydrogen bonds link mol-ecules, forming a three-dimensional network. The isoxazole O atom is an acceptor for both weak hydrogen bonds.
authors.affiliation: Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada.
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Lough
authors.affiliation: Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.
authors.forename: Jaipal R
authors.initials: JR
authors.lastname: Nagireddy
authors.affiliation: Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.
authors.forename: William
authors.initials: W
authors.lastname: Tam