PYRROLO[2,3-D]PYRIMIDINE DERIVATIVE

摘要

Provided is a compound represented by formula (I) and having an HER2 inhibitory action or a pharmacologically acceptable salt of the compound. [In formula (I), T1 is phenyl, indazolyl, or benzofuryl, n is an integer of 0-3, R1 is a hydrogen atom, a halogen atom, a C1-4 alkyl, a C2-6 alkenyl, a C2-6 alkynyl, or a C1-4 alkoxy, m is an integer of 0-3, R2 is hydroxy or a C1-4 alkyl optionally substituted by one or two C1-4 alkoxy groups, and R3 is a hydrogen atom, a C1-4 alkyl, or a C2-6 alkynyl.].