Talabostat isomer mesylate, an isomer of talabostat mesylate, is a potent, nonselective, and orally available inhibitor of dipeptidyl peptidaseIV (DPP-IV) with a Ki of 0.18 nM. Talabostat (PT100, Val-boroPro) is notable for its efficacy in inhibiting DPP-IV.
DPPI 1c hydrochloride is an inhibitor of dipeptidyl peptidaseIV (IC50 = 104 nM) that shows selectivity over enzymes with DPP-like activity (IC50 > 30 μM).