title: Three new triterpene glycosides from Ilex asprella.
abstract: Three new sulfated triterpene glycosides, asprellanosides C-E (1-3), were isolated from the roots of Ilex asprella. Their structures were elucidated as 3β-[(2-O-sulfo-β-d-xylopyranosyl)oxy]urs-12,19(29)-diene-28-oic acid 28-β-d-glucopyranoside (1), 3β-[(2-O-sulfo-β-d-xylopyranosyl)oxy]urs-12,19-diene-28-oic acid 28-β-d-glucopyranoside (2), and 3β-[(2-O-sulfo-β-d-xylopyranosyl)oxy]urs-12,19-diene-28-oic acid (3) on the basis of the spectral and chemical methods.
authors.affiliation: Department of Biology, Hanshan Normal University, Chaozhou 521041, China.
authors.forename: Zhen-Xia
authors.initials: ZX
authors.lastname: Zhang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
authors.forename: Ken Yu-Zhong
authors.initials: KY
authors.lastname: Zheng
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D030017:Ilex / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D013237:Stereoisomerism; D013463:Sulfuric Acid Esters / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D013463:Sulfuric Acid Esters; D014315:Triterpenes; C582470:asprellanoside C; C582469:asprellanoside D; C582468:asprellanoside E