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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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An androstane bioside and 3'-thiazolidinone derivatives of doubly-linked cardenolide glycosides from the roots of Asclepias tuberosa.

Steroidal compounds in the roots of Asclepias tuberosa were investigated and 17alpha-hydroxyandrosta-4,6,15-trien-3-one 17-O-alpha-L-arabinopyranosyl-(1-->6)-beta-D-glucopyranoside, termed ascandroside, was isolated from the CHCl3-soluble fraction. Among five doubly-linked cardenolide glycosides, two were identified as 3'-spiro-linked thiazolidinone (4) and S-oxythiazolidinone derivatives (5) of delta5-calotropin. The stereochemistry at the C-3' in these two cardenolides is discussed. 3'-O-beta-D-Glucopyranosyl-delta5-calotropin (3) was also isolated along with A5-calotropin and its 3'-acetate. Nine glycosides of uzarigenin, coroglaucigenin and corotoxigenin were identified.[1]

References

  1. An androstane bioside and 3'-thiazolidinone derivatives of doubly-linked cardenolide glycosides from the roots of Asclepias tuberosa. Abe, F., Yamauchi, T. Chem. Pharm. Bull. (2000) [Pubmed]
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