BI-671800

Description: BI-671800 (AP-761) is a highly specific and potent antagonist of chemoattractant receptor-homologous molecule on Th2 cells (DP2/CRTH2). With IC50 values of 4.5 nM and 3.7 nM for PGD2 binding to CRTH2 in hCRTH2 and mCRTH2 transfected cells, respectively. BI-671800 has the potential to treat poorly controlled asthma[2]. Target: GPR, Prostaglandin Receptor. Smiles: CN(C)c1nc(Cc2ccc(NC(=O)c3ccc(cc3)C(F)(F)F)cc2)nc(N(C)C)c1CC(O)=O. References: Boehme SA, et al. A small molecule CRTH2 antagonist inhibits FITC-induced allergic cutaneous inflammation. Int Immunol. 2009 Jan,21(1):81-93.