Phytochemical Studies on Resins of Boswellia Neglecta and Commiphora Sphaerocarpa
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Date
1997-06
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Addis Ababa Universty
Abstract
The family Burseraceae with 17 genera is widely distributed in tropical and subtropical
countries. The genus COlllllliphora comprises 150-200 species and B05wellia 20 species. Gum
exudates of some COlllllliphora and Boswellia species have been used for centuries as medicinal and
perfumery substances. In the course of this study 7 COlllllliphora and 3 Boswellia species were
collected and identified. Two of this species are endemic (B. pirottae and C. lIIonoica). The study on
the chemical constituents of two species (E. neglecta and C. sphaerocmpa) was undertaken. The resin
of C. sphaerocmpa used as a traditional medicine by the local people is studied chemically for the
first time. The extract from the resin of B. neglecta yielded as a major component Bn-8 tentatively
identified as 12-uresen-3-ol. The extract obtained from the resin of C. sphaerocarpa afforded five
compounds coded as Cs-4, Cs-S, Cs-6, Cs-9 and Cs-IO. Cs-6 was identified as the novel compound
6-hydroxy isofuranogermacrene (84). Other characterized compounds are Cs-9 (3-methoxy-IOmethylenefhranogermacra-
I (2)-en-6-one (22) and Cs-IO (2-methoxyfuranogermacra-1 (lO)-en-6-one
(20) previously isolated from the resins of C. /110111101 and C. holrziana. Characterization of Cs-4 and
Cs-S is in progress.
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Phytochemica Fulfilmen