2-aminothiazole derivative or salt thereof

A compound of the formula (I) or a salt thereof:

• wherein:
• X is C—H or N,
• Y is C—R3e or N,
• R1 and R2 are the same as each other or are different from each other, and are C1-6 alkyl which may be substituted, or R1 and R2 may be combined with the adjacent nitrogen atom to form cyclic amino which may be substituted,
• R3a, R3b, R3c, and R3d are the same as each other or are different from each other, and are H, halogen, C1-6 alkyl, halogeno C1-6 alkyl, —O—C1-6 alkyl, C2-6 alkenyl, C3-8 cycloalkyl, or —O-halogeno C1-6 alkyl,
• in a case where Y is C—R3e, R3e is H, halogen, C1-6 alkyl, halogeno C1-6 alkyl, —(O—C1-6 alkyl, C2-6 alkenyl, C3-8 cycloalkyl, or —O-halogeno C1-6 alkyl,
• R4 is H, halogen, or —O—C1-6 alkyl,
• R5 is H, C1-6 alkyl, or —NR51R52,
• Q is heterocyclylene which may be substituted,
• W is a bond, C1-6 alkylene, —O—C1-6 alkylene, or —N(RN)—C1-6 alkylene,
• R51 and R52 are the same as each other or are different from each other, and are H or C1-6 alkyl,
• RN is H or C1-6 alkyl, and
• n is 0 or 1.