In diet-induced obese (DIO) mice, PTP1B-IN-3 (compounds 3g) exhibits dose dependent inhibition (60%, 80% and 100% inhibition at 1, 3 and 10 mg/kg, respectively) of glucose excursion when given orally 2 h before oral glucose challenge with an estimated ED 50 of 0.8 mg/kg [1]. In the NDL2 Ptpn1 transgenic mice, PTP1B-IN-3 (compounds 3g; orally; 30 mg/kg for 21 days) shows a significant delay in the onset of tumor development in NDL2 Ptpn1 +/+ mice, extending the median tumor free days (T50) from 28 days to 75 days [1]. In diet-induced obese (DIO) mice, PTP1B-IN-3 (compounds 3g) exhibits good oral bioavailability (F of 24%), slow clearance (CL of 0.71 mL/kg/min), and good elimination half live (t 1/2 of 6 h). The oral bioavailability in higher species such as rats (F of 4%) and squirrel monkeys (F of 2%) are substantially lower but excellent exposures are achieved with oral dosing [1].