Multistep Microwave-Assisted Divergent Synthesis of Indolo-Fused Pyrazino-/Diazepinoquinoxalinones on PEG Support
作者:Jin-Ji Lai、Deepak B. Salunke、Chung-Ming Sun
DOI:10.1021/ol100436r
日期:2010.5.21
Synthesis of amino acid and indoline-substituted dinitrobenzene on a soluble polymer support (PEG) and its further reductive double-ring closure to afford structurally diverse indolo-fused pyrazino-/diazepinoquinoxalinones is described. Traceless synthesis of quinoxalinones coupled with application of the Pictet−Spengler-type condensation reaction furnished these novel scaffolds. These hitherto novel
描述了在可溶性聚合物载体(PEG)上氨基酸和二氢吲哚取代的二硝基苯的合成及其进一步的还原性双环封闭,以提供结构上不同的吲哚稠合的吡嗪并/二氮杂喹啉草酮。喹喔啉酮的无痕合成以及Pictet-Spengler型缩合反应的应用为这些新型支架提供了条件。与经典反应条件相比,这些迄今新颖的杂环是在微波辐射条件下以较短的时间合成的。