1,7-Diphenyl-5-hydroxy-4,6-hepten-3-one is a natural product of Alpinia, Zingiberaceae. 1,7-Diphenyl-5-hydroxy-4,6-hepten-3-one can be used as a reference standard.

RLX-33 is a potent and selective antagonist of relaxin family peptide 3 (RXFP3) that crosses the blood-brain barrier and also blocks relaxin 3-induced ERK1/2 phosphorylation.

PROTAC PD-1/PD-L1 degrader-1, a Cereblon E3 ligand-based compound, is a PD-1/PD-L1 PROTAC that effectively inhibits the PD-1/PD-L1 interaction with an IC50 of 39.2 nM.