IDO1-IN-14 (compound 4a) is a potent IDO1 inhibitor with an IC50 of 396.9 nM. IDO1-IN-14 has cellular IDO1 inhibition (HeLa EC50=3393 nM).

IDO1-IN-15 is a potent IDO1 inhibitor (IC50=127 nM). IDO1-IN-15 has comparable potency against IDO1 enzyme in vitro with Epacadostat.

ZC0101 is a potent, orally active IDO1 and TrxR dual inhibitor with IC50 values of 0.084 μM and 7.98 μM, respectively. ZC0101 effectively induces apoptosis and ROS accumulation in cancer cells.

DP00477 is a potent IDO1 (indoleamine 2,3-dioxygenase 1) inhibitor with an IC50 value of 7.0 µM. DP00477 has the potential for the research of cancer.

ZC0109 is a dual inhibitor of IDO1 and thioredoxin reductase 1 (TrxR1) with IC50s of 50 nM and 3.0 μM, respectively. ZC0109 induces ROS accumulation and cell cycle arrest at G1/S phase, thus leads to cancer cells Apoptosis.

CAY10581, a pyranonaphthoquinone derivative, is a highly specific and reversible uncompetitive IDO Inhibitor with an IC50 of 55 nM.