title: [Studies on triterpenoids of total glucosides of tripterygium wilfordii].
abstract: Three more triterpenoids were isolated from total glucosides of tripterygium wilfordii (T1). T16 and T17 were identified as salaspermic acid and as wilforlide B. T18 was a new compound. The structure of T18 was determined, as 3-oxo-22 alpha-hydroxy-delta 12-oleanen-29-oic acid by detail spectroscopic and chemical analysis, and named triptotriterpenonic acid A.
authors.affiliation: Institute of Dermatology, CAMS, Nanjing.
authors.forename: C
authors.initials: C
authors.lastname: Zhang
authors.forename: Z
authors.initials: Z
authors.lastname: Yan
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.forename: X
authors.initials: X
authors.lastname: Lü
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D029757:Tripterygium; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D014315:Triterpenes; C093232:triptotriterpenonic acid A; D009828:Oleanolic Acid; C074717:salaspermic acid; C052982:wilforlide B