title: Pseudokobusine.
abstract: The title compound, hetisan-6,11beta,15beta-triol, C20H27NO3, is a hetisane-type diterpenoid alkaloid. It consists of six six-membered rings and two five-membered rings. The fused-ring system contains three chair, two boat, one distorted boat and two envelope conformations. Intramolecular and intermolecular hydrogen bonds are present between the O atoms, with O...O separations of 3.006 (3) and 2.743 (3) A, as well as an O...N intermolecular interaction of 2.887 (3) A.
authors.affiliation: Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India. mstk@mahendra.iacs.res.in
authors.forename: K
authors.initials: K
authors.lastname: Bhattacharyya
authors.forename: T
authors.initials: T
authors.lastname: Kar
authors.forename: G
authors.initials: G
authors.lastname: Bocelli
authors.forename: L
authors.initials: L
authors.lastname: Righi
authors.forename: B B
authors.initials: BB
authors.lastname: Joshi
mesh_terms: D001952:Bridged-Ring Compounds / Q000737:chemistry*; D018360:Crystallography, X-Ray; D019684:Magnoliopsida / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D010616:Phenanthrenes / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014665:Vasodilator Agents / Q000737:chemistry*
chemical_list: D001952:Bridged-Ring Compounds; D010616:Phenanthrenes; D014665:Vasodilator Agents; C111430:pseudokobusine