6IC2:
reference: Polypharmacology of epacadostat: a potent and selective inhibitor of the tumor associated carbonic anhydrases IX and XII., Angeli A, Ferraroni M, Nocentini A, Selleri S, Gratteri P, Supuran CT, Carta F, Chem Commun (Camb). 2019 May 14;55(40):5720-5723. doi: 10.1039/c8cc09568j. PMID: 31038135

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).