DG-041 is an antagonist of high-affinity EP3 receptor (IC50s: 4.6 nM and 8.1 nM in the binding and FLIPR assay, respectively). DG-041 inhibits PGE2 facilitation of platelet aggregation and has the blood-brain barrier permeability.

PF-4693627 is an effective and selective microsomal prostaglandin E synthase-1 inhibitor (IC50=3 nM). It is used for the treatment of inflammation caused by osteoarthritis (OA) and rheumatoid arthritis (RA).

Dehydroglyasperin D exhibits anticancer, anti-inflammatory, anti-obesity, antioxidant and anti-aldose reductase effects, it inhibits the proliferation of HT-29 human colorectal cancer cells through direct interaction with phosphatidylinositol 3-kinase; it also mediates suppression of both COX-2 expression and the MLK3 signalling pathway through direct binding and inhibition of MLK3. Dehydroglyasperin D shows strong ferric reducing activities and effectively scavenged DPPH, ABTS(+), and singlet oxygen radicals.

MF-766 is a highly potent, selective and orally active EP4 antagonist with a Ki of 0.23 nM. It behaves as a full antagonist with an IC50 of 1.4 nM (shifted to 1.8 nM in the presence of 10% HS) in the functional assay. It can be used for cancer and inflammation diseases research[1][2].

Pseudohypericin has photocytotoxic, and antiretroviral activities, it has potential therapeutic value in diseases such as AIDS.