Abstract
Series of 5-substituted arylpyridin-2(1H)-ones and arylpyrimidin-4(3H)-ones were designed and synthesized based on pirfenidone, a compound which shows promising therapeutic effects for treatment of fibrosis. The compounds 1a–c, 2a–c and 3a–c were obtained under mild conditions by arylation of the appropriate heterocyclic amines with arylboronic acids under Chan-Lam-Evans conditions. The synthesis of the useful synthon N-(4-methoxyphenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-(1H)-pyridin-2-one (4) is also reported. All compounds were characterized by spectral and elemental analysis and structural elucidation by 1H and 13C NMR is discussed herein.
一系列5-取代芳基吡啶-2(1H)-酮和芳基嘧啶-4(3H)-酮基于吡非酮设计并合成,吡非酮是一种显示出有希望的治疗纤维化作用的化合物。在Chan-Lam-Evans条件下,通过芳基硼酸与适当的杂环胺的芳基化,在温和条件下获得化合物1a-c,2a-c和3a-c。还报道了有用的合成单体N-(4-甲氧基苯基)-5-(4,4,5,5-四甲基-1,3,2-二氧杂环戊二烯基)-(1H)-吡啶-2-酮(4)。所有化合物均通过光谱和元素分析进行表征,并通过1H和13C NMR结构阐明。