| abstract |
Provided are a nitrogen-containing aromatic heterocyclic derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, and an FGFR inhibitor containing the same as an active ingredient. [Wherein, W represents CR 3 (wherein R 3 represents a hydrogen atom or the like), etc., R 4 represents a hydrogen atom or the like, R 5 represents a hydrogen atom or the like, and R 9 represents a substituted imidazolyl. R 12 and R 13 are the same or different and represent a hydrogen atom and the like, R 22 and R 23 are the same or different and represent a hydrogen atom and the like, R 24 represents a hydrogen atom and the like, and Y is CR 25 (wherein R 25 represents a hydrogen atom, etc.); |