title: [Chemical constituents of flavonoids and their glycosides in Melastoma dodecandrum].
abstract: The chemical constituents of 95% ethanol extract of Melastoma dodecandrum were isolated and purified by chromatography on silica gel, Sephadex LH-20, and HPLC, to obtain thirteen compounds eventually. On the basis of their physico-chemical properties and spectroscopic data, these compounds were identified as quercetin (1), quercetin-3-O-β-D-glucopyranoside (2), quercetin-3-O-(6"-O-p-coumaroyl) -β-D-glucopyranoside (3), kaempferol (4), kaempferol-3-O-β-D-glucopyranoside (5), kaempferol-3-O- [2",6"-di-O-(E)-coumaroyl]-β-D-glucopyra-noside (6), luteolin (7), luteolin-7-O-(6"-p-coumaroyl) -β-D-glucopyranoside (8), apigenin (9), apigenin-7-(6"-acetyl-glucopyranoside) (10) , naringenin (11), isovitexin (12), and epicatechin-[8,7-e] -4β-(4-hydroxyphenyl)-3,4-dyhydroxyl-2(3H)-pyranone (13). Eight compounds(3,5,6,8-11 and 13) were obtained from M. dodecandrum for the first time.
authors.forename: Miao
authors.initials: M
authors.lastname: Cheng
authors.forename: Ling-Jie
authors.initials: LJ
authors.lastname: Meng
authors.forename: Xing-Dong
authors.initials: XD
authors.lastname: Zhou
authors.forename: Hui-Liang
authors.initials: HL
authors.lastname: Zou
authors.forename: Shao-Fu
authors.initials: SF
authors.lastname: Yu
authors.forename: Guang-Xiong
authors.initials: GX
authors.lastname: Zhou
mesh_terms: D047310:Apigenin / Q000032:analysis; D002845:Chromatography / Q000379:methods; D002851:Chromatography, High Pressure Liquid; D003911:Dextrans; D044950:Flavanones / Q000032:analysis; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D006027:Glycosides / Q000032:analysis* / Q000737:chemistry; D044949:Kaempferols / Q000032:analysis; D047311:Luteolin / Q000032:analysis; D019684:Magnoliopsida / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000032:analysis; D058428:Silica Gel
chemical_list: D003911:Dextrans; D044950:Flavanones; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; D058428:Silica Gel; C006552:kaempferol; D047310:Apigenin; C025614:sephadex; D011794:Quercetin; C005273:naringenin; C049772:isovitexin; D047311:Luteolin