title: Acylated-oxypregnane glycosides from the roots of Asclepias syriaca.
abstract: Twenty new pregnane glycosides were obtained from the roots of Asclepias syriaca L. (Asclepiadaceae). These glycosides were confirmed to contain ikemagenin, 12-O-nicotinoyllineolon, 5alpha,6-dihydroikemagenin, and 12-O-tigloylisolineolon, as their aglycones, using both spectroscopic and chemical methods.
authors.affiliation: Institute for Environmental Sciences, University of Shizuoka. Suruga-ku, Japan. warashin@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: D000215:Acylation; D031108:Asclepias / Q000737:chemistry*; D002236:Carbohydrate Conformation; D006027:Glycosides / Q000737:chemistry; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry; D011278:Pregnanes / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
chemical_list: D006027:Glycosides; D011278:Pregnanes