Novel applications of convertible isonitriles for the synthesis of mono and bicyclic γ-lactams via a UDC strategy
作者:Christopher Hulme、Liang Ma、Marie-Pierre Cherrier、Joseph J Romano、George Morton、Celine Duquenne、Joseph Salvino、Richard Labaudiniere
DOI:10.1016/s0040-4039(00)00052-6
日期:2000.3
application of the so-called convertible isonitriles for the solution/solid phase generation of γ-lactam analogues. Use of tethered N-BOC aldehydes in the Ugi multi-component reaction (MCR), followed by BOC removal and base treatment (a ‘3-step, 1-pot procedure’) affords γ-lactams in good yield. The UDC (Ugi/De-BOC/Cyclize) strategy, coupled with a convertible isonitrile, is now feasible from all three
该通信揭示了所谓的可转换异腈在γ-内酰胺类似物的溶液/固相生成中的新应用。在Ugi多组分反应(MCR)中使用拴系的N -BOC醛,然后进行BOC去除和碱处理(“ 3步1锅法”)可得到高收率的γ-内酰胺。UDC(Ugi / De-BOC /环化)策略与可转换的异腈结合,现在可以在Ugi产品的所有三个取代位点使用。还揭示了一种概念上新颖的方法,该方法将双功能前体与缩合后修饰相结合以产生稠合的内酰胺-酮哌嗪。