Cu-Mediated Expeditious Annulation of Alkyl 3-Aminoacrylates with Aryldiazonium Salts: Access to Alkyl <i>N</i><sup>2</sup>-Aryl 1,2,3-Triazole-carboxylates for Druglike Molecular Synthesis
作者:Hao-Nan Liu、Hao-Qiang Cao、Chi Wai Cheung、Jun-An Ma
DOI:10.1021/acs.orglett.0c00006
日期:2020.2.21
Alkyl N-aryl 1,2,3-triazole-carboxylates are important molecules or intermediates in medicinal chemistry, but the synthesis of N2-aryl counterparts remains elusive. Herein, we describe a Cu-mediated annulation reaction of alkyl 3-aminoacrylates with aryldiazonium salts, both of which are readily available substrates. Furthermore, alkyl 2-aminoacrylates are also viable substrates. Diverse alkyl N2-aryl
N-芳基1,2,3-三唑-羧酸烷基酯是药物化学中的重要分子或中间体,但N2-芳基对应物的合成仍然难以捉摸。在本文中,我们描述了3-氨基丙烯酸烷基酯与芳基重氮盐的Cu介导的环化反应,这两种都是容易获得的底物。此外,2-氨基丙烯酸烷基酯也是可行的底物。N 2-芳基1,2,3-三唑-羧酸烷基酯及其类似物可以在温和的条件下快速制备。特别地,该方案允许人们访问碳酸酐酶抑制剂和塞来昔布的几种药物样变体。