The present invention relates to an improved process for the preparation of Sunitinb. The process involves the activation of 5-((Z)-(5-fluoro-2- oxoindolin-3-ylidene) methyl)-2,4- dimethyl-1 H-pyrrole-3carboxylic acid to corresponding suitable carboxylic acid activating group. The present invention also relates to novel acid addition salts of Sunitinb and preparation thereof.
本发明涉及一种改进的Sunitinib制备过程。该过程涉及将5-((Z)-(5-
氟-2-氧
吲哚-3-基甲基)-2,4-二甲基-1 H-
吡咯-3-
羧酸)激活为相应的适当
羧酸活化基团。本发明还涉及Sunitinib的新型酸盐及其制备方法。