Synthesis of Highly Functionalized 2(1<i>H</i>)-Pyrazinone 3-Carboxamide Scaffolds
作者:Sonalika V. Pawar、Vijaykumar G. Pawar、Wim Dehaen、Wim M. De Borggraeve
DOI:10.1021/ol801664v
日期:2008.10.16
Synthesis of highly functionalized 2(1H)-pyrazinone 3-carboxamide derivatives is reported. A one-pot, two-step process including the base-mediated reaction of N,N-disubstituted aminoacetonitrile derivatives 18 with 3,5-dihalo-2(1H)-pyrazinones 1 afforded substituted aminoacetonitrile pyrazinone derivative 19, which on subsequent oxidation followed by transamidation of the resulting intermediate with
报道了高度官能化的2(1H)-吡嗪酮3-羧酰胺衍生物的合成。一锅两步的过程包括N,N-二取代的氨基乙腈衍生物18与3,5-二卤代2(1H)-吡嗪酮1的碱介导反应,得到了取代的氨基乙腈吡嗪酮衍生物19,随后进行氧化反应通过将所得中间体与伯胺或仲胺进行氨基转移,得到相应的高度官能化的2(1H)-吡嗪酮3-羧酰胺衍生物21。