Terpenes of Dipterocarpus and Doona species |
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| Authors: | Wickramasinghe M Bandaranayake Sarath P Gunasekera Subadra Karunanayake |
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| Institution: | Department of Chemistry, University of Sri Lanka, Peradeniya Campus, Peradeniya, Sri Lanka |
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| Abstract: | From the resins of Dipterocarpus hispidus, Dipterocarpus zeylanicus and Doona macrophylla, asiatic (2α,3β,23α-trihydroxyurs-12-en-28-oic) and 2α,3β-dihydroxyurs-12-en-28-oic acids have been isolated. The resin of Doona macrophylla contains ursolic acid and that of Doona congestiflora asiatic acid, 20β-hydroxy-3-oxo dammar-23-ene (Dipterocarpol) and a dihydroxyolean-12-en-28-oic acid. The bark of Dipterocarpus hispidus contains betulinic acid, dipterocarpol, and 3β,20β-dihydroxydammar-23-ene (dammarenediol 20S) whilst the timber contained dipterocarpol and asiatic acid. |
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| Keywords: | Dipterocarpaceae triterpenes structural analysis |
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