Fujifilm Corporation

Kentarou Furuya

Daisuke Nakagawa

Hidetomo Furuyama

Hideki Kurihara

Takahiro Terao

Shinichirou Sekine

A 1,5-naphthyridine derivative represented by Formula [1] (in which R, R, R, Rand Rrepresent a hydrogen atom, -L-Z (in which Z represents a non-aromatic heterocyclic group or the like; and L represents a single bond or the like), or the like, Rrepresents -L-Z or the like, Rand Rrepresent a hydrogen atom or the like, and Q represents an oxygen atom or the like), or a salt thereof has an excellent inhibitory activity with respect to the PI3K-AKT pathway and the Ras-Raf-MEK-ERK pathway, and is useful for treatments such as prophylactic treatments and therapeutic treatments of diseases in which the PI3K-AKT pathway and the Ras-Raf-MEK-ERK pathway are involved.

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Ashigarakami-gun, Japan

Kentarou Furuya