8,12;8,20-Diepoxy-8,14-secopregnane glycosides from the aerial parts of Asclepias tuberosa.
Further study of constituents from the aerial parts of Asclepias tuberosa afforded twenty-two new steroidal glycosides along with tuberoside B(5) and G(5). These glycosides were confirmed to contain 8,12;8,20-diepoxy-8,14-secopregnanes, tuberogenin and its congeners, as their aglycones. The structure of each of these compounds was elucidated based on the interpretation of NMR and MS measurements and from chemical evidence.
Warashina
Tsutomu
T
Institute for Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan. warashin@u-shizuoka-ken.ac.jp
Noro
Tadataka
T
D031108:Asclepias / Q000737:chemistry*; D006027:Glycosides / Q000032:analysis* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry*; D012503:Saponins / Q000032:analysis / Q000302:isolation & purification; D013256:Steroids / Q000032:analysis / Q000302:isolation & purification
D006027:Glycosides; D012503:Saponins; D013256:Steroids; C436828:tuberoside