title: Acetylated triterpene saponins from the Thai medicinal plant, Sapindus emarginatus.
abstract: From the pericarps of Sapindus emarginatus (Sapindaceae), three new acetylated triterpene saponins were isolated together with hederagenin and five known triterpene saponins, as well as one known sweet acyclic sesquiterpene glycoside, mukurozioside IIb. The structures of new compounds were elucidated as hederagenin 3-O-(2-O-acetyl-beta-D-xylopyranosyl)-(1-->3)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside, 23-O-acetyl-hederagenin 3-O-(4-O-acetyl-beta-D-xylopyranosyl)-(1-->3)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside and oleanolic acid 3-O-(4-O-acetyl-beta-D-xylopyranosyl)-(1-->3)-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside by chemical and spectroscopic data.
authors.affiliation: Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kanchanapoom
authors.forename: R
authors.initials: R
authors.lastname: Kasai
authors.forename: K
authors.initials: K
authors.lastname: Yamasaki
mesh_terms: D000107:Acetylation; D000818:Animals; D002851:Chromatography, High Pressure Liquid; D007408:Intestinal Absorption / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D051381:Rats; D029631:Sapindaceae / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D012995:Solubility; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013785:Thailand; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C446973:23-O-acetylhederagenin 3-O-(4-O-acetylxylopyranosyl)-(1-3)-rhamnopyranosyl-(1-2)-arabinopyranoside; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; C446971:hederagenin 3-O-(2-O-acetylxylopyranosyl)-(1-3)-rhamnopyranosyl-(1-2)-arabinopyranoside; C446972:oleanolic acid 3-O-(4-O-acetylxylopyranosyl)-(1-3)-rhamnopyranosyl-(1-2)-arabinopyranoside; D009828:Oleanolic Acid