Abstract: The invention relates to bioactive compounds derived from an endophytic Aspergillus sp. fungus strain isolated from a Malaysian medicinal plant Garcinia scortechinii and to compositions which contain one or more of these compounds. In particular, the invention relates to compounds according to formula I; or a pharmaceutically acceptable salt, solvate, hydrate or prodrug derivative thereof, as pure stereoisomers, mixture of isomers, in enol form or tautomeric form. These compounds have utility in, for example, anti-cancer treatments.