CXCR

SCH 563705 is a potent dual CXCR2(IC50= 1.3 nM)/CXCR1(IC50= 7.3 nM) antagonist.

USL311 is a CXCR4 receptor antagonist which prevents the binding of stromal-cell derived factor-1 (SDF-1 or CXCL12) to CXCR4.