title: [Steroids and aromatic derivatives from Euphorbia micractina].
abstract: From an ethanol extract of Euphorbia micractina roots, seven steroids fifteen aromatic derivatives were isolated by a combination of various chromatographic techniques, including column chromatography over macroporous resin, silica gel, and Sephadex LH-20 and reversed-phase HPLC. Their structures were elucidated by spectroscopic data analysis as stigamast-5-ene-3beta, 7alpha-diol(1), stigamast-5-ene-3beta,7beta-diol(2), stigmast-5-en-3beta-ol-7-one(3), stigmast-4-en-6beta-ol-3-one(4), stigmast-1, 4-dien-3-one(5), stigmast-3,6-dione(6), beta-sitosterol(7), scopoletin(8), aesculetin(9), 6-hydroxy-5,7-dimethoxycoumarin(10), quercetin(11), 3,3', 4'-tri-O-methylellagic acid(12), p-hydroxyphenylethyl anisate(13), m-hydroxyphenylethyl alcohol(14), (E)-cinnamic acid(15), (E)-ferulic acid(16), 3,4-dihydroxybenzoic acid(17), vanillic acid(18), p-hydroxybenzoic acid(19), ethyl 3,4-dihydroxybenzoate (20), ethyl gallate(21), and methyl gallate(22). These compounds were obtained from this plant for the first time.
authors.forename: Yao-wu
authors.initials: YW
authors.lastname: Tao
authors.forename: Wen-dong
authors.initials: WD
authors.lastname: Xu
authors.forename: Ye
authors.initials: Y
authors.lastname: Tian
authors.forename: Jian-gong
authors.initials: JG
authors.lastname: Shi
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D028481:Euphorbia / Q000737:chemistry*; D015394:Molecular Structure; D021241:Spectrometry, Mass, Electrospray Ionization; D013256:Steroids / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D013256:Steroids