NP19

NP19 is an inhibitor of the protein-protein interaction between programmed cell death 1 (PD-1) and its ligand PD-L1 (IC50 = 12.5 nM in a homogenous time-resolved fluorescence (HTRF) assay). It increases IFN-gamma production by isolated human peripheral blood mononuclear cells (PBMCs) in co-culture with anti-CD3 single-chain variable fragment- and PD-L1-expressing Hep3B hepatoma cells (EC50 = ~3 µM). NP19 (25, 50, and 100 mg/kg) reduces tumor growth in a B16/F10 murine melanoma model and an H22 murine hepatocellular carcinoma model.Formal Name: N-[[5-chloro-2-[(3-cyanophenyl)methoxy]-4-[(2-methyl[1,1'-biphenyl]-3-yl)methoxy]phenyl]methyl]-2-methyl-alanine. CAS Number: 2377916-66-8. Molecular Formula: C33H31ClN2O4. Formula Weight: 555.1. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 30 mg/ml, DMSO: 30 mg/ml. SMILES: N#CC1=CC=CC(COC2=CC(OCC3=CC=CC(C4=CC=CC=C4)=C3C)=C(C=C2CNC(C)(C)C(O)=O)Cl)=C1. InChi Code: InChI=1S/C33H31ClN2O4/c1-22-26(13-8-14-28(22)25-11-5-4-6-12-25)21-40-31-17-30(39-20-24-10-7-9-23(15-24)18-35)27(16-29(31)34)19-36-33(2,3)32(37)38/h4-17,36H,19-21H2,1-3H3,(H,37,38). InChi Key: YZPKZNFXWGTUGO-UHFFFAOYSA-N.