title: Further polyoxypregnane glycosides from Marsdenia tenacissima.
abstract: Three new polyoxypregnane glycosides, tenacigenosides F-H (1-3), were isolated from the stems of Marsdenia tenacissima. The structures of these new compounds were elucidated from 1D and 2D NMR spectra, as well as from HR-MS and acid hydrolysis.
authors: Ethnic Pharmaceutical Institute, Southwest University for Nationalities, Chengdu, China. wxl3232@sina.com
authors: Xiao-Ling
authors: XL
authors: Wang
authors: Shun-Lin
authors: SL
authors: Peng
authors: Li-Sheng
authors: LS
authors: Ding
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D031101:Marsdenia / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D011278:Pregnanes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D011278:Pregnanes; C552001:tenacigenoside F; C552002:tenacigenoside G; C552000:tenacigenoside H