Warner Bros. Discovery, Inc.
CRYSTAL FORM OF EGFR INHIBITOR AND PREPARATION METHOD THEREOF

Abstract:

Disclosed are a crystal form of an EGFR inhibitor and a preparation method thereof. Further disclosed is an application of the crystal form in preparing a drug for treating non-small cell lung cancer, especially an application in preparing a drug for treating non-small cell lung cancer with brain metastases. ##STR00001##