Bufadienolide glycosides of the Crassulaceae. Structure and stereochemistry of orbicusides A—C, novel toxic metabolites of Cotyledon orbiculata
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 9,p. 1633-1636
- https://doi.org/10.1039/p19860001633
Abstract
Three new bufadienolide glycosides, orbicusides A—C, in addition to the known tyledoside C, have been identified as the toxic principles of Cotyledon orbiculata L. var. orbiculata. The structures (3), (5), and (6) for orbicusides A—C, respectively, with three ether bridges between the 4,6-dideoxyhexose moiety and the bufadienolide aglycone, were deduced from a detailed 1H and 13C n.m.r. study.This publication has 3 references indexed in Scilit:
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- ISOLATION AND CHARACTERIZATION OF AND SOME OBSERVATIONS ON POISONING BY BUFADIENOLIDES FROM COTYLEDON-ORBICULATA L VAR ORBICULATA1985
- Stereochemistry of the hexosulose in cardenolide glycosides of the asclepiadaceaeJournal of the Chemical Society, Perkin Transactions 1, 1980