3-diones, we have developed an approach to an unprecedented 6/5/5/5-tetracyclic alkaloid-like spiroheterocyclic system of benzo[d]pyrrolo[3′,4′:2,3]pyrrolo[2,1-b]thiazole via their reaction with Schiff bases and carbodiimides. The experimental results have been supplemented with DFT computational studies. The synthesized alkaloid-like 6/5/5/5-tetracyclic compounds have been tested for their biotechnological
1H-吡咯-2,3-二酮在[e]-侧与杂环稠合,是合成各种角多环
生物碱类螺杂环的合适平台。最近发现的含
硫[e]-稠合
1H-吡咯-2,3-二酮(芳酰基
吡咯并苯并
噻嗪三酮)往往表现出不寻常的反应性。基于[e]-稠合
1H-吡咯-2,3-二酮的这些特殊代表,我们开发了一种前所未有的苯并[d]
吡咯并的6/5/5/5-四环
生物碱类螺杂环系统的方法。 3',4':2,3]
吡咯并[2,1-b]
噻唑通过与席夫碱和碳二
亚胺反应生成。实验结果得到了 DFT 计算研究的补充。合成的类
生物碱 6/5/5/5-四环化合物已作为绿藻普通小球藻生长刺激剂的
生物技术潜力进行了测试。