CRYSTALLINE FORMS OF ERLOTINIB BASE AND ERLOTINIB HCL

摘要

The preparation of crystalline Erlotinib base form G2 is described. This crystalline form can be converted to an Erlotinib salt, such as Erlotinib HCl, which can be used in the treatment of patients with locally advanced or metastatic non-small cell lung cancer (NSCLC).