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