A PROCESS FOR THE PREPARATION OF CRIZOTINIB OR AN ACID ADDITION SALT THEREOF

摘要

The present invention is relates to a process for the preparation of crizotinib or an acid addition salts thereof. More specifically the invention pertains to crizotinib free base in amorphous form and crizotinib dihydrochloride in crystalline and amorphous Forms and pharmaceutical compositions containing the same.