Synthesis of Functionalized 4,1‐Benzothiazepines via a [4+3] Annulation between Aza‐
<i>o‐</i>
Quinone Methides and Pyridinium 1,4‐Zwitterionic Thiolates
作者:Chuan‐Chuan Wang、Xue‐Hua Liu、Xin‐Lu Wang、Hua‐Peng Cui、Zhi‐Wei Ma、Degang Ding、Jun‐Tao Liu、Lei Meng、Ya‐Jing Chen
DOI:10.1002/adsc.202101034
日期:2022.1.18
The [4+3] annulation of aza-o-quinone methides and pyridinium 1,4-zwitterionic thiolates has been developed for the one-step synthesis of functionalized 2,3-unsaturated 4,1-benzothiazepines under mild and metal-free conditions. The produced 4,1-benzothiazepines can easily be converted into biologically interesting sulfoxides and sulfones via selective oxidization with m-CPBA.
氮杂-邻醌甲基化物和吡啶鎓 1,4-两性离子硫醇盐的 [4+3] 环化已被开发用于在温和和无金属条件下一步合成官能化 2,3-不饱和 4,1-苯并硫氮杂卓. 产生的 4,1-苯并硫氮杂通过m -CPBA 的选择性氧化可以很容易地转化为具有生物学意义的亚砜和砜。