title: Three diterpenoids (excoecarins V1-V3) and a flavanone glycoside from the fresh stem of Excoecaria agallocha.
abstract: Three new diterpenoids, excoecarins V1-V3 (1-3) and a new flavanone glycoside (7) were isolated from the fresh stem of Excoecaria agallocha L. Their structures were elucidated as: 2alpha,3alpha,18-trihydroxy-3beta,20-epoxybeyer-15-ene (1), ent-2,3-secokaur-16-en-2,3-dioic acid (2), ent-3,4-seco-16alpha-hydroxyatis-4(19)-en-3-oic acid (3), and 3,5,7,3',5'-pentahydroxy-2R,3R-flavanonol 3-O-alpha-L-rhamnopyranoside (7) on the basis of spectroscopic data, chemical evidence, and/or X-ray analysis.
authors.affiliation: Kyoto Pharmaceutical University, Misasagi, Japan. Konishi@mb.kyoto-phu.ac.jp
authors.forename: Tenji
authors.initials: T
authors.lastname: Konishi
authors.forename: Kiyonori
authors.initials: K
authors.lastname: Yamazoe
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kanzato
authors.forename: Takao
authors.initials: T
authors.lastname: Konoshima
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Fujiwara
mesh_terms: D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D019665:Euphorbiaceae / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018547:Plant Stems
chemical_list: D004224:Diterpenes; D044950:Flavanones; D006027:Glycosides; D010936:Plant Extracts