title: Acylated saponins, masonosides A-C, from the corms of Crocosmia masoniorum.
abstract: Three novel triterpenoid saponins, named masonosides A-C, were isolated from the corms of Crocosmia masoniorum. On the basis of spectral and chemical evidence, the structures of masonosides A-C were elucidated as 3-O-[alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranosyl]-28-O- (2-O- [beta-D-apiofuranosyl-(1-->4)-beta-D-xylopyranosyl-(1-->4)- alpha-L-rhamnopyranosyl]-3-O-(beta-D-glucopyranosyl)-4-O-(2-hydroxy-9-ox o-16- alpha-L-rhamnopyranosyloxyhexadecanoyl)- beta-D-fucopyranosyl)-polygalacic acid, 3-O-[alpha-L-arabinopyranosyl-(1-->6)- beta-D-glucopyranosyl]-28-O-(2-O-[beta-D-apiofuranosyl-(1-->4)-bet a-D- xylopranosyl-(1-->4)-alpha-L-rhamnopyranosyl]- 3-O-(beta-D-glucopyranosyl)-4-O-(2,16-dihydroxy- 9-oxohexadecanoyl)-beta-D-fucopyranosyl)-polygalacic acid and 3-O-[alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranosyl]- 28-O-(2-O-[beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl]-3-O- (beta-D-glucopyranosyl)-4-O-(2,16-dihydroxy- 9-oxohexadecanoyl)-beta-D-fucopyranosyl)-polygalacic acid, respectively.
authors.affiliation: School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Asada
authors.forename: M
authors.initials: M
authors.lastname: Ikeno
authors.forename: T
authors.initials: T
authors.lastname: Furuya
mesh_terms: D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D010944:Plants / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; C086462:masonoside A; C086463:masonoside B; C086464:masonoside C; D009828:Oleanolic Acid