I'm interested in ChEMBL ligands for the target P0A6C1 (ChEMBL target CHEMBL1293285). I looked on the ChEMBL target page for this protein:
https://www.ebi.ac.uk/chembl/target/inspect/CHEMBL1293285. Then I clicked on the piechart under 'Target Associated Bioactivities', and see a list of activities for ligands, including CHEMBL407 (flumazenil), CHEMBL16 (phenytoin), CHEMBL22 (trimethoprim), ...