title: (4bS,8aS)-1-Isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octa-hydro-phenan-thren-2-yl benzoate.
abstract: The title compound, C27H34O2, was hemisynthesized through direct benzoyl-ation of the naturally occurring meroterpene totarol. The central fused six-membered ring has a half-chair conformation, whereas the terminal six-membered ring displays a chair conformation. The dihedral angle between the fused benzene ring and the benzoyl benzene ring is 73.05 (14)°. The S,S chirality of the mol-ecule is consistent with the synthetic pathway, and confirmed by the refinement of the Flack parameter.
authors.affiliation: Laboratoire de Synthése Organique et Physico-Chimie Moléculaire, Département de Chimie, Faculté des Sciences Semlalia, BP 2390 Marrakech 40000, Morocco.
authors.forename: Radouane
authors.initials: R
authors.lastname: Oubabi
authors.affiliation: Laboratoire de Synthése Organique et Physico-Chimie Moléculaire, Département de Chimie, Faculté des Sciences Semlalia, BP 2390 Marrakech 40000, Morocco.
authors.forename: Aziz
authors.initials: A
authors.lastname: Auhmani
authors.affiliation: Laboratoire de Synthése Organique et Physico-Chimie Moléculaire, Département de Chimie, Faculté des Sciences Semlalia, BP 2390 Marrakech 40000, Morocco.
authors.forename: My Youssef
authors.initials: MY
authors.lastname: Ait Itto
authors.affiliation: Laboratoire de Synthése Organique et Physico-Chimie Moléculaire, Département de Chimie, Faculté des Sciences Semlalia, BP 2390 Marrakech 40000, Morocco.
authors.forename: Abdelwahed
authors.initials: A
authors.lastname: Auhmani
authors.affiliation: Laboratoire de Chimie de Coordination, 205 route de Narbonne, 31077 Toulouse Cedex 04, France.
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Daran
keywords: crystal structure