Cardenolide and oxypregnane glycosides from the root of Asclepias incarnata L |
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Authors: | Warashina T Noro T |
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Institution: | Institute for Environmental Sciences, University of Shizuoka, Japan. |
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Abstract: | Twenty-nine new oxypregnane glycosides were obtained along with two known cardenolides, frugoside and gofruside, and three known 12-O-acylated pregnane glycosides from the roots of Asclepias incarnata L. (Asclepiadaceae). By detailed studies of the 1H- and 13C-NMR spectra, the structures were determined to be tri- to penta glycosides of isolineolon, 12-O-acetyllineolon, ikemagenin, 12-O-benzoylisolineolon, and two new 12-O-acylated pregnanes. |
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