DUBs-IN-2

DUBs-IN-2 is an inhibitor of ubiquitin-specific protease 8 (USP8, IC50 = 280 nM). It is selective for USP8 over USP7 (IC50 = >100 µM). DUBs-IN-2 increases the level of programmed cell death protein ligand 1 (PD-L1) in H460 cells when used at a concentration of 2 µM and PC-9 cells at 2 and 4 µM. Intraperitoneal injection of DUBs-IN-2 (1 mg/kg every other day), in combination with an anti-PD-L1 antibody and paclitaxel (Cay-10461), decreases tumor weight, tumor size, and lung metastasis and increases CD8+ T cell numbers within the primary tumor in a 4T1 murine mammary carcinoma model.Formal Name: 9-(ethoxyimino)-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile. CAS Number: 924296-19-5. Synonyms: Deubiquitinase Inhibitor 2, DUBs Inhibitor 2, HY-50737A. Molecular Formula: C15H9N5O. Formula Weight: 275.3. Purity: >95% (mixture of cis/trans isomers). Formulation: (Request formulation change), A solid. Solubility: DMF: 5 mg/ml, DMSO: 5 mg/ml. lambdamax: 211, 226, 278, 322 nm. SMILES: N#CC=1N=C2C(=NOCC)C=3C=CC=CC3C2=NC1C#N. InChi Code: InChI=1S/C15H9N5O/c1-2-21-20-14-10-6-4-3-5-9(10)13-15(14)19-12(8-17)11(7-16)18-13/h3-6H,2H2,1H3. InChi Key: VKVAJBRQGBRHIK-UHFFFAOYSA-N.