(S)-IDOR-1117-2520 is the S-isomer of IDOR-1117-2520 (HY-162495). IDOR-1117-2520 is an orally active, potent, selective and reversible CCR6 antagonist. IDOR-1117-2520 antagonizes the CCL20-mediated calcium flow (IC50 = 63 nM) and inhibits beta-arrestin recruitment to human CCR6 (IC50 = 30 nM) in cells expressing recombinant human CCR6. IDOR-1117-2520 is found to be a substrate of P-gp/MDR1. IDOR-1117-2520 can be used in the research of autoimmune diseases and skin inflammation[1][2].