2',3'-cGAMP-C2-PPA (45) is a cyclic di-nucleotide that acts as a STING agonist (US20210015941A1). It is a drug-linker conjugate for antibody-drug conjugates (ADC) used in the targeted treatment of cancer.
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.