"ent-Homoabyssomicins A and B, Two New Spirotetronates, Khatmiamycin, a Zoosporicidal Naphthoquinone, and Further New Biologically Active Secondary

In Africa and Asia, the majority of the population lives in rural areas and relies on

plant materials to treat their illnesses. The plants are used in different forms such as

extracts or decoctions to treat cancer, tuberculosis, HIV, malaria and many other diseases.

Accordingly, these drugs, which are referred to as 'traditional herbal medicines'

play an important role in improving the health status of the population and preventing

endemic and acute diseases.[1] Also in developed countries traditional herbal medicine

has attracted great interest,[2] enforced by the green movements and an increasing

aversion to synthetic materials. Scientifically, plant metabolites have provided important

ideas for discovery and industrial development of therapeutics.[3]