The chemistry of the Euphorbiaceae. XX. Further compounds from Beyeria leschenaultii 12β,17-Dihydroxy-16α-( - )-kauran-19-oic acid
- 1 January 1968
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 21 (8) , 2085-2093
- https://doi.org/10.1071/ch9682085
Abstract
The title substance was separated from the plant as its methyl ester (IV) and its structure established, partly by conversion into 16α-(-)-kaurane-17,19-dioic acid (VIII) and by other chemical and N.M.R. evidence which locates the secondary hydroxyl. Four known kauranes and a flavone were also isolated from the plant. The conformation of ring c in the 12-oxygenated compounds is discussed.Keywords
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