Crystalline forms of mesylate salt of pyridinyl amino pyrimidine derivative, preparation methods therefor, and applications thereof

摘要

Forms I and II of the mesylate salt of the compound of formula (I), a preparation methods thereof, a pharmaceutical composition containing the crystal forms, and the use of the crystal forms in treating diseases mediated by activating and resistance mutations of EGFR, in particular cancer, in mammal, in particular in human. The crystal forms of the mesylate salt of the compound of formula (I) have good solubilities and high bioavailabilities in animals;