The name/synonym for ligand 4SS (curated from ChEBI, PubChem, and PDB databases):

1(S)-2-(2-((2H-TETRAZOL-5-YL)METHOXY)-4-METHYLPHENYL)-1-(4-CHLOROPHENYL)-6,7-DIETHOXY-1,2-DIHYDROISOQUINOLIN-3(4H)-ONE