The present invention relates to a process for the preparation of Lapatinib Ditosylate of formula 1(b). More particularly, the present invention relates to environment friendly process that involves green chemistry in preparation of Lapatinib Ditosylate of formula 1(b). The said process is economically and commercially viable as initial 2 stages of processes use water as solvent avoiding hazardous reagent or solvent during the preparation of Lapatinib Ditosylate of formula 1(b).
本发明涉及一种制备式Lapatinib Ditosylate的方法,其
化学式为1(b)。更具体地,本发明涉及一种环保过程,涉及在制备Lapatinib Ditosylate的过程中采用绿色
化学。所述方法在经济上和商业上是可行的,因为在制备Lapatinib Ditosylate的过程中,初始的两个阶段使用
水作为溶剂,避免使用有害试剂或溶剂。