Madagascar, the worlds fourth biggest island has a unique biodiversity. The interest on the phytochemical investigation of Malagasy plant and marine natural products started from the isolation of the potent anti-cancerous bisindole alkaloids: vinblastine and vincristine. In this paper, work published in the last two decades (1991-2009) on 262 new natural products isolated from Malagasy higher plants, liverworts and marine organisms is reviewed. Several results on the bioassays of the isolated new natural products have been reported.
Keywords: Madagascar, plants, marine organisms, natural products, biodiversity, bioactivities
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