title: Cimidahuside 1 and 2, two new cyclolanostanol xylosides from the aerial parts of Cimicifuga dahurica.
abstract: Cimidahuside 1 and 2, two new cyclolanostanol xylosides were isolated from the aerial parts of Cimicifuga dahurica (Turcz.) MAXIM, on the basis of spectral data and chemical evidences, their structures were determined to be (20R,24R)-24,25-epoxy-3-beta-(beta-D-xylopyranosyloxy)-9,19-cyclolanost-7-ene-16,23-dione (1), and (20R,24R)-24,25-epxy-15-alpha-hydroxy-3-beta-((bet-D-xylpyranosyoxy)-9,19-cyclanost-7-ene-16,23-dione (2), respectively.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Dihua
authors.initials: D
authors.lastname: Chen
authors.forename: Jianyong
authors.initials: J
authors.lastname: Si
authors.forename: Guangzhong
authors.initials: G
authors.lastname: Tu
authors.forename: Dongge
authors.initials: D
authors.lastname: An
mesh_terms: D031885:Cimicifuga / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010840:Phytosterols / Q000737:chemistry* / Q000302:isolation & purification*; D035261:Plant Components, Aerial / Q000737:chemistry*
chemical_list: C478091:(20R,24R)-24,25-epoxy-3-beta-(beta-D-xylopyranosyloxy)-9,19-cyclolanost-7-ene-16,23-dione; C478090:(20R,24R)-24,25-epxy-15-alpha-hydroxy-3-beta-(bet-D-xylpyranosyoxy)-9,19-cyclanost-7-ene-16,23-dione; D006027:Glycosides; D010840:Phytosterols; C010807:xylosides