Construction and functionalization of pyranone ring fused with pyran moiety: Design and synthesis of novel pyrano[4,3-b]pyran-5(4H)-ones as potential inhibitors of sirtuins
作者:Ali Nakhi、Md. Shafiqur Rahman、Sivakumar Archana、Ravada Kishore、G.P.K. Seerapu、K. Lalith Kumar、Devyani Haldar、Manojit Pal
DOI:10.1016/j.bmcl.2013.05.014
日期:2013.7
Novel pyrano[4,3-b]pyran-5(4H)-one based small molecules were designed as potential inhibitors of sirtuins (i.e., yeast sir2, a homolog of human SIRT1). Elegant synthesis of these compounds was performed via a multi-step sequence consisting of MCR, Sandmeyer type iodination, Sonogashira type coupling followed by iodocyclization and then Pd-mediated various C–C bond forming reactions. The overall strategy
基于新型吡喃并[4,3 - b ]吡喃-5(4 H)-one的小分子被设计为sirtuins的潜在抑制剂(即酵母sir2,人SIRT1的同系物)。这些化合物的精细合成是通过一个多步骤序列进行的,该步骤包括MCR,Sandmeyer型碘化,Sonogashira型偶联,然后进行碘环化,然后进行Pd介导的各种C–C键形成反应。总体策略涉及吡喃环的构建,然后是稠合的吡喃酮部分,以及随后在所得核吡喃并[4,3 - b ]吡喃-5(4 H)-one骨架的C-8位置上进行的功能化。代表性的碘化内酯化产物的晶体结构分析(6d) 被表达。在体外针对酵母sir2进行测试时,某些合成的化合物显示出有希望的抑制活性。化合物6g 对酵母sir2表现出剂量依赖性抑制作用(IC 50 = 78.05μM),并且与该蛋白质在计算机上具有良好的相互作用。