title: Medicinal foodstuffs. XIX. Absolute stereostructures of canavalioside, a new Ent-kaurane-type diterpene glycoside, and gladiatosides A1, A2, A3, B1, B2, B3, C1, and C2, new acylated flavonol glycosides, from sword bean, the seeds of Canavalia gladiata.
abstract: A new ent-kaurane-type glycoside, canavalioside, and eight new acylated flavonol glycosides, gladiatosides A1, A2, A3, B1, B2, B3, C1, and C2, were isolated from the seed of Canavalia gladiata together with robinin, kaempferol 3-O-beta-D-galactopyranosyl-7-O-alpha-L-rhamnopyranoside, and kaikasaponin III. The absolute stereostructures of canavalioside and gladiatosides A1, A2, B1, B2, B3, C1, and C2 were elucidated on the basis of chemical and physicochemical evidence.
authors.affiliation: Kyoto Pharmaceutical University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: K
authors.initials: K
authors.lastname: Kohno
authors.forename: A
authors.initials: A
authors.lastname: Kishi
authors.forename: H
authors.initials: H
authors.lastname: Matsuda
authors.forename: M
authors.initials: M
authors.lastname: Yoshikawa
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D007887:Fabaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010946:Plants, Medicinal; D012639:Seeds / Q000737:chemistry; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D004224:Diterpenes; D005419:Flavonoids; D006027:Glycosides