Total Synthesis of (+)-Epilupinine via An Intramolecular Nitrile Oxide-Alkene Cycloaddition
作者:Deyong Su、Xinyan Wang、Changwei Shao、Jimin Xu、Rui Zhu、Yuefei Hu
DOI:10.1021/jo101910r
日期:2011.1.7
(R)-(2-vinylpiperid-1-yl)propanal by routine methods. Thus, by using Fukuyama’s oxime synthesis, a general method was developed for highly efficient conversion of 3-(N,N-dialkylamino)propanols into 3-(N,N-dialkylamino)propanal oximes without using the corresponding aldehydes.
(+)-癫痫素的全合成以9个步骤完成,总产率为48%,其中将INOC用作构建喹喔啉骨架的关键步骤。我们发现通过常规方法制备关键中间体(R)-N-(3-硝基丙基)-2-乙烯基哌啶或(R)-(2-乙烯基哌啶-1-基)丙醛是极其困难的任务。因此,通过使用福山的肟合成法,开发了一种不使用相应的醛就能将3-(N,N-二烷基氨基)丙醇高效转化为3-(N,N-二烷基氨基)丙肟的通用方法。