Fibrinogen-Binding Peptide (designed by anticomplementarity hypothesis) is a presumptive peptide mimic of the vitronectin binding site on the fibrinogen receptor. Fibrinogen, a soluble plasma protein, is a cofactor in platelet activation. It is converted to fibrin in a reaction catalyzed by thrombin.

CPD77 is a potent SARS-?CoV-?2 main protease inhibitor.?

N-Acetyl-L-histidine monohydrate (NAH) also exhibits a strong phylogenetic component in that it is a major osmolyte in the brain and eye of teleost (bony) fish, amphibians and reptiles, but is present in much lower amounts in brain and other tissues of homeothermic (endothermic) vertebrates.