title: [Structure of swertiamacroside from Swertia macrosperma C.B. Clark].
abstract: From the air-dried whole plant of SwerBia macrosperma C. B. Clark four compounds I-IV were isolated. One of them is a new caffeic acid disaccharide ester. Its structure was elucidated as 1-O-trans-caffeoyl-6-O-alpha-L-rhamnopyranosyl-beta-D-glucopyranos ide, i. e. trans caffeic acid-1-O-rutinose ester on the basis of chemical and spectroscopic analysis, and named swertiamacroside (I). The other three known compounds were identified as mangiferin (II), bellidifodin (III) and bellidifodin-8-O-beta-D-glucopyranoside (IV).
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing.
authors.forename: H M
authors.initials: HM
authors.lastname: Zhou
authors.forename: Y L
authors.initials: YL
authors.lastname: Liu
mesh_terms: D002109:Caffeic Acids / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D004187:Disaccharides / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000032:analysis*
chemical_list: D002109:Caffeic Acids; D004187:Disaccharides; D004365:Drugs, Chinese Herbal; C066120:swertiamacroside