@article{4ad5e5dfd46f4174ba9edbfcfee9568a,
title = "Friedelin, D:A-friedo-olean-3,21-dione and 21α-hydroxy-D:A-friedo-olean-3-one from Kokoona zeylanica",
abstract = "Three triterpenes obtained from the inner bark of Kokoona zeylanica have been identified as friedelin, D:A-friedo-olean-3, 21-dione and 21α-hydroxy- D:A-friedo-olean-3-one by spectroscopic properties and chemical interconversions. Their chemotaxonomic significance is emphasized.",
keywords = "21α-hydroxy-D:A-friedo-olean-3-one, Celastraceae, D:A-friedo-olean-3, 21-dione, Kokoona zeylanica, chemotaxonomy., friedelin, structure elucidation, triterpenoids",
author = "{Leslie Gunatilaka}, {A. A.} and {Dhammika Nanayakkara}, {N. P.} and M. Uvais and S. Sultanbawa and Sinnathamby Balasubramaniam",
note = "Funding Information: Acknowledgements-We thank Professor R. H. Thomson (University of Aberdeen)f or MS data; Mrs. S. C. Weerase-kera, Mr. D. V. Ariyapala and P. H. S. S. A de Silva for technicala ssistance.T his programmeh as been supportedi n part by grantsf rom the U.S. Departmento f Agriculturea nd the International Foundation for Science (Sweden). Lever Bros (Ceylon) Ltd. is thanked for a studentship (to N.P.D.N.).",
year = "1982",
doi = "10.1016/0031-9422(82)83043-4",
language = "English (US)",
volume = "21",
pages = "2061--2063",
journal = "Phytochemistry",
issn = "0031-9422",
publisher = "Elsevier Limited",
number = "8",
}