Nucleophile-induced ring contraction in pyrrolo[2,1-<i>c</i>][1,4]benzothiazines: access to pyrrolo[2,1-<i>b</i>][1,3]benzothiazoles
作者:Ekaterina A Lystsova、Maksim V Dmitriev、Andrey N Maslivets、Ekaterina E Khramtsova
DOI:10.3762/bjoc.19.46
日期:——
Abstract Pyrrolo[2,1-b][1,3]benzothiazoles are an important class of fused sulfur and nitrogen-containing heterocycles intensively studied in medicinal chemistry and pharmacology. In the present paper, a new synthetic approach to pyrrolobenzothiazoles is developed based on 1,4-thiazine ring contraction in 3-aroylpyrrolo[2,1-c][1,4]benzothiazine-1,2,4-triones under the action of nucleophiles. The proposed
摘要 吡咯并 [2,1- b ][1,3] 苯并噻唑是一类重要的稠合硫和含氮杂环化合物,在药物化学和药理学中得到深入研究。在本文中,基于 3-aroylpyrrolo[2,1- c ][1,4]benzothiazine-1,2,4-triones 的 1,4-thiazine 缩环反应,开发了一种合成吡咯并苯并噻唑的新方法亲核试剂。所提出的方法适用于链烷醇、苄胺和芳基胺。研究了所开发方法的范围和局限性。合成的吡咯并苯并噻唑衍生物代表了制药学的兴趣,因为它们的类似物显示出 CENP-E 抑制活性,这对靶向癌症治疗的发展很有意义。 Beilstein J. Org。化学。 2023, 19, 646–657。doi:10.3762/bjoc.19.46