New Pyranocoumarins Isolated from Calophyllum lanigerum and Calophyllum teysmannii
- 1 January 1996
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Natural Products
- Vol. 59 (8) , 754-758
- https://doi.org/10.1021/np9603784
Abstract
During a chemotaxonomic survey of Calophyllum extracts present in the National Cancer Institute's natural product repository, four new pyranocoumarins were isolated from extracts of C. lanigerum var. austrocoriaceum and C. teysmannii var. inophylloide (King.) P. F. Stevens (Clusiaceae). The structure elucidation and anti-HIV activity of calanolide E2 (4), cordatolide E (5), pseudocordatolide C (6), and calanolide F (9), along with a simple prenylated coumarin precursor (11), are described here.Keywords
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