Substituted triazine compound

A compound of formula (I) or a salt thereof

• wherein,
• R1 are the same or different from each other, and are C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, halogen, —O—C1-6 alkyl, —O-halogeno-C1-6 alkyl or cyano,
• R2 is C1-6 alkyl, C3-8 cycloalkyl, halogeno-C1-6 alkyl, —O—C1-6 alkyl, —N(C1-6 alkyl)2 or aryl,
• R3 is H or C1-6 alkyl,
• R4 is C1-6 alkyl substituted with the same or different one to four R5, —C1-6 alkylene-(aryl optionally substituted with the same or different one to four R6), —C1-6 alkylene-(C3-8 cycloalkyl optionally substituted with the same or different one to four R7), —C1-6 alkylene-(heteroaryl optionally substituted with the same or different one to four R8), —C1-6 alkylene-(4 to 7-membered saturated heterocyclyl optionally substituted with the same or different one to four R9), C3-8 cycloalkyl optionally substituted with the same or different one to four R10, heteroaryl optionally substituted with the same or different one to four R11, or a 4 to 7-membered saturated heterocyclyl optionally substituted with the same or different one to four R12,
• R5 is —OR13, —NR14R15, halogen or cyano,
• R6 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen or cyano,
• R7 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen or cyano,
• R8 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen or cyano,
• R9 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen, cyano, oxo, —C(O)—C1-6 alkyl or —S(O)2—C1-6 alkyl,
• R10 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen or cyano,
• R11 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen or cyano,
• R12 is C1-6 alkyl, halogeno-C1-6 alkyl, C3-8 cycloalkyl, —OR13, —NR14R15, —C1-6 alkylene-OR13, —C1-6 alkylene-NR14R15, halogen, cyano, oxo, —C(O)—C1-6 alkyl or —S(O)2—C1-6 alkyl,
• R13 is H or C1-6 alkyl,
• R14 and R15 are the same or different from each other, and are H, C1-6 alkyl or —C(O)—C1-6 alkyl, and
• n is an integer of 1 to 4, which represents the number of R1 substituents.