Table 2.

Inhibitory activity of compounds against PTP1B and SHP2 phosphatases

Tested compounds	IC50 against PTP1B	IC50 against SHP2
Asp-Phe	52.6±3.7 µM	108.7±16.9 µM
Phe-Asp	52.1±1.4 µM	5.2±0.4 µM
Phe-Phe-Asp	104.2±15.9 µM	113.6±23.6 µM
Phe-Asp-Phe	255.1±29.4 µM	97.9±17.9 µM

Note: Values are expressed as IC₅₀ ± SD.