2,2,4-trimethyl-8-(6-methyl-7-oxo-1H-pyrrolo[2,3-c]pyridin-4-yl)-6-methylsulfonyl-1,4-benzoxazin-3-one
INCB-057643 is under investigation in clinical trial NCT02959437 (Azacitidine Combined With Pembrolizumab and Epacadostat in Subjects With Advanced Solid Tumors (ECHO-206)).