Synthesis and MEK1 inhibitory activities of imido-Substituted 2-chloro-1,4-naphthoquinones
作者:Oladapo Bakare、Curtis L. Ashendel、Hairuo Peng、Leon H. Zalkow、Edward M. Burgess
DOI:10.1016/s0968-0896(03)00267-0
日期:2003.7
Mitogen activated protein kinases are of interest as research tools and as therapeutic target for certain physiological disorders. In this study, we found 2-chloro-3-(N-succinimidyl)-1,4-naphthoquinone 6 to be a selective inhibitor of MEK1 with an IC50 of 0.38 muM. An open-chain homologue, 10, showed selective cytotoxicity against renal cancer in the NCI in vitro tumor screeninQ. Structure-activity relationship study of eight compounds showed the cyclic imido-substituted chloro-1,4-naphthoquinone as more potent and selective MEK1 inhibitors than the open chain homologues. The imido-substituted chloro-1,4-naphthoquinones were synthesized in a straightforward fashion by refluxing 2-amino-3-chloro-1,4-naphthoquinone with the appropriate acid chloride or diacyl dichloride. (C) 2003 Elsevier Science Ltd. All rights reserved.