30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca

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Giner-Pons, Rosa M., Gray, Alexander I., Lavaud, Catherine, Massiot, Georges, Gibbons, Simon and Waterman, Peter G. (1992) 30-Norfriedelane triterpenes from the stem bark ofCaloncoba glauca. Phytochemistry, 31 (1). pp. 223-225. ISSN 0031-9422

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Abstract

The stem bark ofCaloncoba glauca has yielded three friedelane triterpenes of which two are characterized by the loss of C-30 and the presence of a C-27, C-15 lactone. They were identified, with considerable use of long-range CH coupling studies, as the known compound trichadonic acid (3-oxofriedelan-27-oic acid) and two new 30-norfriedelane derivatives, 3,27-dioxo-30-norfriedelan-20(29)-en-27,15α-lactone (caloncobalactone) and 3,27-dioxo-21β-hydroxy-30-norfriedelan-20(29)-en-17,15α-lactone (21β-hydroxycaloncoba lactone).

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Pharmacy
Related URLs:	https://linkinghub.elsevier.com/retrieve...
Depositing User:	LivePure Connector
Date Deposited:	10 Jul 2020 00:08
Last Modified:	22 Oct 2022 06:27
URI:	https://ueaeprints.uea.ac.uk/id/eprint/76015
DOI:	10.1016/0031-9422(91)83041-I

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