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DOI: 10.1055/s-2006-957375
© Georg Thieme Verlag Stuttgart · New York
Sesquiterpenes, Limonoid and Coumarin from the Wood Bark of Guarea guidonia
Publication History
1997
1997
Publication Date:
04 January 2007 (online)

Abstract
Investigation of the wood bark of Guarea guidonia (Meliaceae) led to the isolation of a limonoid (mombasol), a coumarin (scopoletin), and six sesquiterpenes [trans-1(10)-epoxy-4(15)-caryophyllene, 1(10)-epoxy-4,7-humuladiene, viridiflorol, 1(10),4-diepoxy-7-humulene, 3-oxo-10-alloaromadendranol, 1β-6α-dihydroxyeudesm-4(15)ene]. The occurrence of these metabolites in the Guarea genus is reported for the first time. Stigmasterol, sitosterol and its oleate and palmitate esters were also obtained. Some corrections to the previously reported chemical shift assignments of 3-oxo-10-alloaromadendranol (13C-NMR) were made.