Author/Authors :
Tois، نويسنده , , Jan and Franzén، نويسنده , , Robert and Aitio، نويسنده , , Olli and Huikko، نويسنده , , Katri and Taskinen، نويسنده , , Jyrki، نويسنده ,
Abstract :
The preparation of 5-substituted 2-carboxyindoles on solid support is reported. In the approach, the indole moiety is synthesized in solution phase, followed by nitro-group reduction, reductive amination and alkylation on solid support. The method provides a simple and convenient route for the preparation of 5-substituted 2-carboxyindoles with high purity and good yield.