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首页> 外文期刊>Journal of Medicinal Chemistry >Pyridinylquinoxalines and Pyridinylpyridopyrazines as Lead Compounds for Novel p38 alpha Mitogen-Activated Protein Kinase Inhibitors
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Pyridinylquinoxalines and Pyridinylpyridopyrazines as Lead Compounds for Novel p38 alpha Mitogen-Activated Protein Kinase Inhibitors

机译:吡啶基喹喔啉和吡啶基吡啶并吡嗪类化合物是新型p38α丝裂原活化的蛋白激酶抑制剂的先导化合物

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摘要

Various substituted 2(3)-(4-fluorophenyl)-3(2)-(pyridin-4-yl)quinoxatines and 2(3)-(4-fluorophenyl)3(2)-(pyridin-4-yl)pyridopyrazines were synthesized as novel p38 alpha MAP kinase inhibitors via different short synthetic strategies with high variation possibilities. The formation of the quinoxaline/pyridopyrazine core was achieved from alpha-cliketones and o-phenylenodiamines/alpha-diaminopyridines under microwave irradiation. Introduction of an amino moiety at the pyridine C2 position of the 2(3)-(4-fluorophenyl)-3(2)-(pyridin-4-yl)quinoxalines led to compounds showing potent enzyme inhibition down to the double-digit nanomolar range (6f; IC50 = 81 nM). Replacement of the quinoxaline core with pyrido[2,3-b]pyrazine gave compound 9e with superior p38 alpha MAP kinase inhibition (IC50 = 38 nM).
机译:各种取代的2(3)-(4-氟苯基)-3(2)-(吡啶-4-基)喹喔啉和2(3)-(4-氟苯基)3(2)-(吡啶-4-基)吡啶并吡嗪通过不同的短合成策略以高变异可能性合成了新型p38αMAP激酶抑制剂。喹喔啉/吡啶并吡嗪核的形成是通过在微波辐射下由α-cliketones和o-phenylenodiamines /α-diaminopyridines实现的。在2(3)-(4-氟苯基)-3(2)-(吡啶-4-基)喹喔啉的吡啶C2位置引入氨基部分导致化合物显示出有效的酶抑制作用直至两位数纳摩尔范围(6f; IC50 = 81 nM)。用吡啶并[2,3-b]吡嗪取代喹喔啉核心,得到化合物9e,具有较强的p38αMAP激酶抑制作用(IC50 = 38 nM)。

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