Memantine, an amantadine derivative with some dopaminergic effects, has been proposed as an antiparkinson agent and has may be used to treat moderate to severe Alzheimer's disease. It acts on the glutamatergic system by blocking NMDA receptors.

2-Isopropoxy-2-Phenylacetophenone is a natural compound.

Petunidin-3-O-arabinoside chloride is an anthocyanin with antioxidant activity that can be isolated from blueberry (Vaccinium Spp.) puree.