56133-86-9Relevant articles and documents
Design and Synthesis of Pyridone-Containing 3,4-Dihydroisoquinoline-1(2H)-ones as a Novel Class of Enhancer of Zeste Homolog 2 (EZH2) Inhibitors
Kung, Pei-Pei,Rui, Eugene,Bergqvist, Simon,Bingham, Patrick,Braganza, John,Collins, Michael,Cui, Mei,Diehl, Wade,Dinh, Dac,Fan, Connie,Fantin, Valeria R.,Gukasyan, Hovhannes J.,Hu, Wenyue,Huang, Buwen,Kephart, Susan,Krivacic, Cody,Kumpf, Robert A.,Li, Gary,Maegley, Karen A.,McAlpine, Indrawan,Nguyen, Lisa,Ninkovic, Sacha,Ornelas, Martha,Ryskin, Michael,Scales, Stephanie,Sutton, Scott,Tatlock, John,Verhelle, Dominique,Wang, Fen,Wells, Peter,Wythes, Martin,Yamazaki, Shinji,Yip, Brian,Yu, Xiu,Zehnder, Luke,Zhang, Wei-Guo,Rollins, Robert A.,Edwards, Martin
, p. 8306 - 8325 (2016/10/03)
A new enhancer of zeste homolog 2 (EZH2) inhibitor series comprising a substituted phenyl ring joined to a dimethylpyridone moiety via an amide linkage has been designed. A preferential amide torsion that improved the binding properties of the compounds was identified for this series via computational analysis. Cyclization of the amide linker resulted in a six-membered lactam analogue, compound 18. This transformation significantly improved the ligand efficiency/potency of the cyclized compound relative to its acyclic analogue. Additional optimization of the lactam-containing EZH2 inhibitors focused on lipophilic efficiency (LipE) improvement, which provided compound 31. Compound 31 displayed improved LipE and on-target potency in both biochemical and cellular readouts relative to compound 18. Inhibitor 31 also displayed robust in vivo antitumor growth activity and dose-dependent de-repression of EZH2 target genes.