title: Medicinal plants of Thailand. I structures of rheedeiosides A-D and cis-entadamide A β-D-glucopyranoside from the seed kernels of Entada rheedei.
abstract: Four new oleanane-type triterpene oligoglycosides, named rheedeiosides A, B, C and D, and one new thioamide glycoside, cis-entadamide A β-D-glucopyranoside, were isolated from the seed kernels of a Thai medicinal plant, Entada rheedei SPRENGEL. The rheedeiosides were found to contain N-acetylglucosamine as a sugar component. Their structures were elucidated based on spectral and chemical evidence.
authors.affiliation: Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.
authors.forename: Sachiko
authors.initials: S
authors.lastname: Sugimoto
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Matsunami
authors.forename: Hideaki
authors.initials: H
authors.lastname: Otsuka
mesh_terms: D000117:Acetylglucosamine / Q000737:chemistry; D000178:Acrylamides / Q000737:chemistry* / Q000302:isolation & purification; D007887:Fabaceae / Q000737:chemistry*; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010946:Plants, Medicinal / Q000737:chemistry; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry; D013785:Thailand; D014315:Triterpenes / Q000737:chemistry
chemical_list: D000178:Acrylamides; D012503:Saponins; D014315:Triterpenes; C061600:entadamide A; D000117:Acetylglucosamine