Prolylleucine is a dipeptide containing branched-chain amino acids.The addition of specific dipeptide containing branched-chain amino acids, such as Prolylleucine, to the growth medium negatively affects cell envelope-associated proteinase (CEP) activity, whereas dipeptides without branched-chain amino acids had no effect on the enzyme's production.

PRX-08066 Maleic acid is a selective 5-HT2B receptor antagonist with IC50 of 3.4 nM, prevents the severity of pulmonary arterial hypertension in the MCT rat model. Phase 2.

4-O-Methylbutein (2',3,4'-trihydroxy-4-methoxychalcone) may have anti-inflammation activity, it is a potent heme oxygenase-1 (HO-1) inducer, the upregulation of HO-1 has proven to be a useful tool for fighting inflammation.