title: Aculeoside I, a novel 18,19-seco-ursane saponin isolated from Ilex aculeolata.
abstract: A novel 18,19-seco-ursane saponin, aculeoside I (1), in addition to four known saponins were isolated from the leaves of Ilex aculeolata Nakai and identified by using spectroscopic and chemical methods. The structure of the new saponin was established as 3,19-dihydroxyl-16,21-epoxy-18,19-seco-13(18)-urs-ene-28-oic-acid-19-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranoside.
authors: Department of Chemistry, Huaqiao University, Quanzhou, Fujian, China.
authors: Ming-An
authors: MA
authors: Ouyang
authors: Xu
authors: X
authors: Zhang
authors: Dian-Peng
authors: DP
authors: Li
mesh_terms: D002681:China; D002851:Chromatography, High Pressure Liquid; D006868:Hydrolysis; D030017:Ilex / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism
chemical_list: D012503:Saponins; C470080:aculeoside I