title: [A new flavone from stems of Garcinia bracteata and its anti-TMV activity].
abstract: A phytochemical investigation on the stems of Garcinia bracteata collected from Xishuangbanna resulted in the isolation of a new flavone. By analysis of the HRESIMS, IR, UV, 1D and 2D NMR spectra, the structure of the new compound was determined as 7-methoxy-4',6-dihydroxy-8-isobutyryl-flavone(1). Compound 1 was also tested for its anti-tobacco mosaic virus(TMV) activity. Results suggested the 1 possessed remarkable anti-TMV activity, with an inhibition rate of 28.2%.
authors.forename: Li-mei
authors.initials: LM
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.forename: Jie
authors.initials: J
authors.lastname: Lou
authors.forename: Yue-de
authors.initials: YD
authors.lastname: Wang
authors.forename: Kun
authors.initials: K
authors.lastname: Zhou
authors.forename: Wei
authors.initials: W
authors.lastname: Dong
authors.forename: Xue-mei
authors.initials: XM
authors.lastname: Gao
authors.forename: Qiu-fen
authors.initials: QF
authors.lastname: Hu
authors.forename: Zhi-yong
authors.initials: ZY
authors.lastname: Jiang
mesh_terms: D000998:Antiviral Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D047309:Flavones / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D029760:Garcinia / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D014027:Tobacco Mosaic Virus / Q000187:drug effects* / Q000254:growth & development
chemical_list: D000998:Antiviral Agents; D004365:Drugs, Chinese Herbal; D047309:Flavones; C043562:flavone