Chemical investigation into the twigs and leaves of Sapium insigne afforded seven new diterpenoids, sapinsignoids A-G (1-7), together with 10 known diterpenoids. The structures of 1-7 were assigned on the basis of detailed spectroscopic analysis and chemical degradation. Compounds 1-4 exhibited
BACKGROUND
Several species from the genus Sapium possess a broad range of medicinal properties and they have been used as traditional medicines by indigenous groups in several regions such as Malaysia, Africa, Southern China and Bolivia. Most of the species reported to possess therapeutic effects
Three new polyketides, cylindrocarpones A-C (1-3), two new pyridone alkaloids, cylindrocarpyridones A-B (5-6), a new pyrone cylindropyrone (7), together with seven know compounds were isolated from the endophytic fungus, Cylindrocarpon sp., obtained from the tropical plant Sapium ellipticum. The
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