title: [The structure of tripterygone].
abstract: Three triterpene compounds have been isolated from the roots of Tripterygium wilfordii Hook F. The structure of the new compound, 3-hydroxy-25-norfriedel-3, 1 (10)-dien-2-one-30 oic acid named tripterygone (III), and the identity of others, 3 beta, 22 beta-dihydroxy-delta 12-oleanen-29-oic acid (I) and 2 alpha, 3 alpha, 24-trihydroxy-delta 12-ursene-28-oic acid (II) have been established by spectral data and physical properties. Compound II was isolated for the first time from the title plant.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing.
authors.forename: D M
authors.initials: DM
authors.lastname: Zhang
authors.forename: D Q
authors.initials: DQ
authors.lastname: Yu
authors.forename: F Z
authors.initials: FZ
authors.lastname: Xie
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D029757:Tripterygium; D014315:Triterpenes / Q000302:isolation & purification*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D004365:Drugs, Chinese Herbal; D014315:Triterpenes; C071828:tripterygone