PD-1/PD-L1 interaction inhibitor. Binds to PD-L1 (Kd = 0.51 μM). Inhibits interaction at 1 mg/mL in flow cytometry. Inhibits tumor growth and prolongs survival time of mice in vivo.

1620813-53-7

C70H98N20O21

1555.67

(D)-PPA 1

H2O:2 mg/mL
Powder: -20°C for 3 years
In solvent: -80°C for 2 years