SYNTHESIS OF CHIRAL 2-(1H-INDAZOL-6-YL)-SPIROCYCLOPROPANE-1,3'-INDOLIN-2'-ONES

摘要

The present invention is directed to novel synthetic methods for preparing a spiro cyclopropyl indolinone compound represented by Structural Formula (A): (A) or its pharmaceutically acceptable salt thereof. Also included are synthetic intermediates described herein.