OATD-01 exhibits high affinity toward h/mCHIT1 and h/mAMCase, and the inhibitory constants (Ki) for all four enzymes are 17.3 nM, 26.05 nM, 4.8 nM and 5.7 nM, respectively. These Ki values reveals good correlation with earlier established IC50 data, the IC50 values are 23 nM, 28 nM, 9 nM and 7.8 nM for hCHIT1,mCHIT1, hAMCase and mAMCase, respectively..
Off-target in vitro effects of compound OATD-01 have been evaluated at 10 μM in the Eurofins Panlabs panel of 98 in vitro binding and enzymatic assays, involving diverse molecular classes of proteins.