作者:Jens Wolfard、Jie Xu、Haiming Zhang、Cheol K. Chung
DOI:10.1021/acs.orglett.8b02335
日期:2018.9.7
developed. Indole nucleophiles prepared with MeMgCl in the presence of CuCl reacted with chiral cyclic sulfamidates almost exclusively at the C3-position of indole to form a variety of α- and/or β-substituted chiral tryptamines in good yield with excellent regioselectivity. The utility of this simple alkylation process has been demonstrated with the practical synthesis of two biologically active targets
已经开发了从简单的未保护的吲哚实际合成手性色胺的方法。在CuCl存在下用MeMgCl制备的吲哚亲核试剂几乎只在吲哚的C 3-位与手性环状氨基磺酸盐反应,以高收率和优异的区域选择性形成各种α-和/或β-取代的手性色胺。通过从相应的吲哚起始原料开始的三个步骤完成的两种生物活性靶标西帕加明和TIK-301的实际合成,证明了这种简单烷基化方法的实用性。