The rapid construction and biological evaluation of densely substituted pyrrolo[1,2-<i>a</i>]indoles <i>via</i> a BF<sub>3</sub>·OEt<sub>2</sub>-assisted cascade approach
作者:Ghanshyam Mali、Vinay Kumar Yadav、Himani Priya、Manjari Shukla、Peeyush Pandey、Akhilesh Kumar、Manikandan Paranjothy、Sudipta Bhattacharyya、Rohan D. Erande
DOI:10.1039/d3ob01457f
日期:——
Lewis-acid cascade reactions promoted by BF3·OEt2 are reported for the synthesis of highly substituted pyrrolo[1,2-a]indoles and congeners of benzofuro[2,3-b]indoles. These reactions are highly regio- and diastereoselective towards generating up to five contiguous stereogenic centers, including two vicinal quaternary centers. Furthermore, an established cascade approach and the mechanism proposed herein
据报道,BF 3 ·OEt 2促进的路易斯酸级联反应用于合成高度取代的吡咯并[1,2- a ]吲哚和苯并呋喃并[2,3- b ]吲哚的同系物。这些反应具有高度区域和非对映选择性,可生成多达五个连续的立体中心,包括两个邻近的四级中心。此外,本文提出的已建立的级联方法和机制得到了量子化学计算的良好支持。此外,捕获并分离了自二聚中间体,以建立潜在获得吡咯和苯并吲哚衍生物的策略,为拓宽留下足够的自由度。此外,计算机分子对接和全原子分子动力学(MD)模拟分析表明,合成的吡咯并[1,2- a ]吲哚衍生物稳定地结合在分枝杆菌分泌的酪氨酸磷酸酶B(MptpB)的活性位点,新兴的抗分枝杆菌药物靶点。本文介绍了基于深度学习的亲和力预测和基于 MMPBGBSA 的对接姿势的能量计算。