title: New guaian-type sesquiterpene from Wikstroemia indica.
abstract: From a MeOH extract of powdered roots of Wikstroemia indica, we isolated a new guaian-type sesquiterpene (1) and two known guaian-type sesquiterpenes [oleodaphnal (2), 1alpha,7alpha,10alphaH-guaia-4,11-dien-3-one (3)], together with twelve known compounds: (+)-arctigenin, (+)-matairesinol, (+)-trachelogenin, (+)-nortrachelogenin, (+)-hinokinin, (+)-kusunokinin, 7-methoxycoumarin, 7-hydroxycoumarin (umbelliferone), daphnogitin, daphnoretin, salicifoliol, and (-)-pinoresinol. The structure of compound 1 was determined to be 4,10,11-guaiatrien-3-one-14-oic acid, by the analyses of spectral data.
authors.forename: Mamoru
authors.initials: M
authors.lastname: Kato
authors.forename: Yu-Min
authors.initials: YM
authors.lastname: He
authors.forename: Dya Fta
authors.initials: DF
authors.lastname: Dibwe
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.forename: Suresh
authors.initials: S
authors.lastname: Awale
authors.forename: Shigetoshi
authors.initials: S
authors.lastname: Kadota
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Tezuka
mesh_terms: D045744:Cell Line, Tumor; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry / Q000302:isolation & purification*; D032365:Wikstroemia / Q000737:chemistry*
chemical_list: D045789:Sesquiterpenes, Guaiane