title: Platanionosides A-C, megastigmane diglycosides from the leaves of Alangium platanifolium.
abstract: From the leaves of Alangium platanifolium var. platanifolium collected in Fukuoka Prefecture, Japan, three megastigmane diglycosides (1-3) were isolated, along with two known compounds, benzyl alcohol 7-O-beta-D-(6'-O-beta-D-xylopyranosyl)glucopyranoside and Z-hex-3-en-1-ol 1-O-beta-D-glucopyranoside. The structures of the new compounds, named platanionosides A (1), B (2), and C (3) were elucidated by spectroscopic evidence to be 3S,5R,6R,9R, 7E-megastigma-3,9-diol 3,9-di-O-beta-D-glucopyranoside, 3R,9R, 7E-megastigma-5,7-diene-3,9-diol 3,9-di-O-beta-D-glucopyranoside, and 5R,6S,7E-megastigma-3-on-7-en-9-ol 9-O-beta-D-(6'-O-beta-D-xylopyranosyl)glucopyranoside, respectively.
authors.affiliation: Institute of Pharmaceutical Sciences, Hiroshima University Faculty of Medicine, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Tamaki
authors.forename: H
authors.initials: H
authors.lastname: Otsuka
authors.forename: T
authors.initials: T
authors.lastname: Ide
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002942:Circular Dichroism; D003510:Cyclohexanes / Q000737:chemistry* / Q000302:isolation & purification; D004187:Disaccharides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D003510:Cyclohexanes; D004187:Disaccharides; C121591:platanionoside A; C121592:platanionoside B; C121593:platanionoside C