title: [Studies on the structure of gnetifolin A of Gnetum parvifolium (Warb.) C.Y. Cheng].
abstract: A new component, gnetifolin A, was isolated from the ethyl acetate fraction of the stem of Gnetum parvifolium (Warb.) C.Y. Cheng together with three known components isorhapontigenin, resveratrol and beta-sitosterol. The structure of gnetifolin A has been established as 2-(3',5'-dihydroxy-4'-methoxyphenyl)-3-methoxy-5-hydroxybenzofuran by spectroscopic methods (UV, IR, MS, 1HNMR, 13CNMR, 2D-NMR).
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing.
authors.forename: J B
authors.initials: JB
authors.lastname: Li
authors.forename: M
authors.initials: M
authors.lastname: Lin
authors.forename: S Z
authors.initials: SZ
authors.lastname: Li
authors.forename: W Z
authors.initials: WZ
authors.lastname: Song
mesh_terms: D001572:Benzofurans / Q000737:chemistry* / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D004365:Drugs, Chinese Herbal; C073000:gnetifolin A