ZLD1039

ZLD1039 is an inhibitor of enhancer of zeste homolog 2 (EZH2, IC50 = 5.6 nM). It is selective for EZH2 over EZH1 (IC50 = 81 nM) and is greater than 4,700-fold selective for EZH2 in a panel of 14 histone methyltransferases. ZLD1039 also inhibits mutant Y641F and A677G EZH2 (IC50s = 15 and 4 nM, respectively, in a cell-free enzyme assay). It inhibits methylation of histone 3 lysine 27 (H3K27) in MCF-7 breast cancer cells (IC50 = 0.29 µM) and decreases expression of cadherin-1 (CDH1), cyclin-dependent kinase inhibitor 1C (CDKN1C), CDKN2A, and runt-related transcription factor 3 (RUNX3) in MCF-7 cells when used at concentrations of 1 and 2 µM. It also suppresses migration of MCF-7 cells when used at a concentration of 2 µM. ZLD1039 (200 mg/kg) reduces tumor growth in MCF-7 and MDA-MB-231 mouse xenograft models and inhibits tumor metastasis and decreases tumor protein levels of matrix metalloproteinase-2 (MMP-2), MMP-9, and E-cadherin in a 4T1 mouse xenograft model when administered at a dose of 250 mg/kg.Formal Name: 3-[ethyl(tetrahydro-2H-pyran-4-yl)amino]-N-[(2,3,5,6,7,8-hexahydro-1-methyl-3-oxo-4-isoquinolinyl)methyl]-2-methyl-5-[6-(4-methyl-1-piperazinyl)-3-pyridinyl]-benzamide. CAS Number: 1826865-46-6. Molecular Formula: C36H48N6O3. Formula Weight: 612.8. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMSO: soluble. lambdamax: 280 nm. SMILES: CN1CCN(C2=NC=C(C3=CC(N(C4CCOCC4)CC)=C(C)C(C(NCC5=C(CCCC6)C6=C(C)NC5=O)=O)=C3)C=C2)CC1. InChi Code: InChI=1S/C36H48N6O3/c1-5-42(28-12-18-45-19-13-28)33-21-27(26-10-11-34(37-22-26)41-16-14-40(4)15-17-41)20-31(24(33)2)35(43)38-23-32-30-9-7-6-8-29(30)25(3)39-36(32)44/h10-11,20-22,28H,5-9,12-19,23H2,1-4H3,(H,38,43)(H,39,44). InChi Key: SZAYCVHJDOWSNY-UHFFFAOYSA-N.