SYNTHESIS OF CHIRAL 2-(1H-INDAZOL-6-YL)-SPIRO[CYCLOPROPANE-1,3'- INDOLIN]-2'-ONES

摘要

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