title: Glycosides of 14,15-seco and 13,14:14,15-disecopregnanes from the roots of Cynanchum sublanceolatum.
abstract: Thirty-two new 13,14-seco and 13,14:14,15-disecopregnane glycosides were obtained from the roots of Cynanchum sublanceolatum (Asclepiadaceae). These glycosides were confirmed to be possessing five known compounds, cynajapogenin A, glaucogenin-A, 13-hydroxycynajapogenin A, 2alpha-hydroxyanhydrohirundigenin, atratogenin A and one new pregnane, 13-epi-cynajapogenin A, as their aglycones, using both spectroscopic and chemical methods.
authors.affiliation: Institute for Environmental Sciences, University of Shizuoka, Shizuoka, Japan. warashin@sea.u-shizuoka-ken.ac.jp
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Warashina
authors.forename: Tadataka
authors.initials: T
authors.lastname: Noro
mesh_terms: D031105:Cynanchum / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry* / Q000302:isolation & purification; D012680:Sensitivity and Specificity; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013237:Stereoisomerism
chemical_list: D006027:Glycosides; D011278:Pregnanes