title: Two new isoflavone glycosides from Mucuna birdwoodiana.
abstract: Two new isoflavone glycosides, mucodianins E (1) and F (2), have been isolated from the vine stems of Mucuna birdwoodiana Tutch. Their structures have been established as retusin 7-O-beta-D-xylopyranosyl-(1 --> 6)-beta-D-glucopyranoside (1) and 8-O-methylretusin 7-O-beta-D-xylopyranosyl-(1 --> 6)-beta-D-glucopyranoside (2) by means of spectroscopic analysis and chemical methods.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education & Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Gong
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.forename: Dong-Xiao
authors.initials: DX
authors.lastname: Wang
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.forename: Ruo-Yun
authors.initials: RY
authors.lastname: Chen
authors.forename: De-Quan
authors.initials: DQ
authors.lastname: Yu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification*; D007529:Isoflavones / Q000737:chemistry* / Q000302:isolation & purification*; D015394:Molecular Structure; D031299:Mucuna / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D007529:Isoflavones; C549293:mucodianin E; C549294:mucodianin F