反应详情

1-Pyrrolidine-sulfonyl chloride and 6-chloro-2-(5-hydroxy-pyridin-3-yl)-indole-1-carboxylic acid tert-butyl ester (Example 160a) are processed according to the method described in Example 160b to give 6-chloro-2-[5-(pyrrolidine-1-sulfonyloxy)-pyridin-3-yl]-indole-1-carboxylic acid tert-butyl ester, which is taken onto the next step without further purification. MS (ESI) m/z 478.1 (M+H)+.