A Disconnection for Rapid Access to Heterocyclic Benzylic Amines with Fully Substituted α-Carbons
作者:Shouliang Yang、Fen Wang、Stephanie Scales、Michelle Tran-Dubé、Madeline Berry、Haiwei Xu、Feng Tang、Liangliang Xue、Zhongwei Ma、Bryan Li、Indrawan McAlpine
DOI:10.1021/acs.joc.3c02748
日期:2024.3.15
amines represent a privileged motif in drug discovery. However, the formation of heterocyclic benzylic amines with fully substituted α-carbons can require the execution of lengthy synthetic routes, which limit their application. Addition of various nucleophilic agents to Ellman’s imines has been well established; however, there is no precedented literature reported for pyridyl-type nucleophiles, which
2-或4-吡啶基苄胺代表了药物发现中的一个特殊主题。然而,具有完全取代的α-碳的杂环苄基胺的形成可能需要执行冗长的合成路线,这限制了它们的应用。将各种亲核试剂添加到埃尔曼亚胺中已经得到很好的证实;然而,目前还没有关于吡啶基型亲核试剂的先例文献报道,而吡啶基型亲核试剂对于药物化学非常重要。在这封信中,我们公开了从杂芳基卤化物和亚磺酰亚胺一步合成具有完全取代的α-碳的杂环苄胺的进展。以2,4-二溴吡啶为原料,通过选择甲苯或MTBE作为溶剂,可以实现2-或4-吡啶基苄胺的区域选择性合成。