Provided is a compound having a tyrosine kinase inhibitory activity specific to C797S resistant mutant EGFR (particularly C797S tertiary-resistant mutant EGFR) and is useful as a C797S resistant mutant EGFR (particularly C797S mutant tertiary-resistant EGFR) specific tyrosine kinase inhibitor, an agent for preventing and/or treating non-small cell lung cancer with resistance mutant EGFR and the like, and the like.
A compound represented by the formula (I):
wherein
X is O or NH,
R
1
and R
2
are each independently a hydrogen atom or an optionally substituted hydrocarbon group;
R
3
and R
4
are each independently a hydrogen atom, a halogen atom or an optionally substituted hydrocarbon group, and
R
5
and R
6
are each independently an optionally substituted hydrocarbon group, excluding the following compounds:
or a salt thereof.
                            提供一种具有特异性抑制C797S耐药突变
EGFR的
酪氨酸激酶抑制活性的化合物(特别是C797S三级耐药突变
EGFR),并且可用作C797S耐药突变
EGFR(特别是C797S突变三级耐药
EGFR)特异性
酪氨酸激酶
抑制剂,用于预防和/或治疗具有耐药突变
EGFR的非小细胞肺癌等药剂等。一种由以下式(I)表示的化合物:其中X为O或NH,R1和R2分别为氢原子或可选择取代的碳氢基团;R3和R4分别为氢原子、卤素原子或可选择取代的碳氢基团,而R5和R6分别为可选择取代的碳氢基团,但不包括以下化合物:或其盐。