title: Three new steroidal glycosides from the roots of Cynanchum stauntonii.
abstract: Three new steroidal glycosides, named as stauntosides L, M, and N (1-3), along with one known C21 steroidal glycoside, anhydrohirundigenin monothevetoside (4), were isolated from the 95% ethanol extract of the roots of Cynanchum stauntonii. The structures of these new compounds were elucidated on the basis of extensive spectroscopic analyses, mainly 1D and 2D NMR, HRESI-MS, and chemical methods.
authors.affiliation: State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors.forename: Jin-Qian
authors.initials: JQ
authors.lastname: Yu
authors.forename: Zhi-Hui
authors.initials: ZH
authors.lastname: Zhang
authors.forename: An-Jun
authors.initials: AJ
authors.lastname: Deng
authors.forename: Hai-Lin
authors.initials: HL
authors.lastname: Qin
mesh_terms: D031105:Cynanchum / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D006027:Glycosides; D010840:Phytosterols
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