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It was found that an extract from its tissues showed activity against Leishmania amazonensis, the protozoan parasite causing the tropical skin disease leishmaniasis, and had the advantage that it was not toxic to the mice on which it was tested.
Heathcock is known for tackling the chemical synthesis of complex, polycyclic natural products, often possessing unusual biological activity including Daphniphyllum alkaloids, altohyrtin, zaragozic acid, spongistatins, and many others.
Note difference between landfill and compost - the limited biological activity in landfill is slow, and mostly anaerobic resulting in the production of methane, whereas composting is a rapid aerobic process resulting in humus, water and non-fossil CO2.
Pterins and flavins are classes of substituted pteridines that have important biological activity.