Trihydroxychalcone (Isoliquiritigenin, ISL) is a flavonoid found in licorice root and several other plants that displays antioxidant,anti-inflammatory,and antitumor activities as well as hepatoprotection against steatosis-induced oxidative stress. Trihydroxychalcone is a potent antimetastatic agent, which can markedly inhibit the metastatic and invasive capacity of prostate cancer cells. The inhibition of JNK/AP-1 signaling may be one of the mechanisms by which ISL inhibits cancer cell invasion and migration. Trihydroxychalcone has been shown to be a BACE1 inhibitor, which could ameliorate memory impairment in mice, and is expected to be potentially used as a lead compound for further anti-AD reagent development.

1,3-Dicyclohexylurea (DCU) is a potent endogenous inhibitor of soluble epoxide hydrolase (sEH), that has been found in human serum. Soluble epoxide hydrolase has been implicated in cardiovascular disease and inflammation in mammals. Endogenously produced 1,3-dicyclohexylurea may have physiological significance via regulation of soluble epoxide hydrolase activity in vivo.