The present invention provides a novel 2,4,6-substituted pyrimidine derivative, which is a compound represented by formula (I) (in the formula, ring A is a 6-membered heteroaryl group having at least one N atom optionally substituted with R1, R2, and R3； Z is an optionally substituted alkoxy group, an optionally substituted amino group, an optionally substituted heterocycloalkyl group, or an optionally substituted heteroaryl group； and R1, R2, and R3 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted alkoxy group, an optionally substituted cycloalkyloxy group, an optionally substituted heterocycloalkyloxy group, an optionally substituted phenoxy group, an optionally substituted amino group, a nitro group, and a hydroxy group) or a pharmaceutically acceptable salt thereof.
