A pyridazine derivative represented by the following formula (1):
wherein
R1
represents a phenyl or pyridyl group which may be substituted by 1 to 3 substituents selected from a halogen atom and a C1-6 alkoxyl group,
R2
represents a phenyl group substituted at least at 4-position by a C1-6 alkoxyl group, C1-6 alkylthio group, a C1-6 alkylsulfinyl group, or a C1-6 alkylsulfonyl group, and optionally has one or more substituents at the other position by 1 or 2 substituents selected from a halogen atom, a C1-6alkoxyl group, C1-6 alkylthio group, a C1-6 alkylsulfinyl group, or a C1-6 alkylsulfonyl group,
R3
represents a C1-6 alkoxyl group, a fluorinated C1-6 alkyl group, C1-6 alkyl group or a C3-8 cycloalkyl group,
A
represents a single bond or linear or branched C1-6 alkylene group or C2-9 alkenylene group,
X
represents an oxygen atom or a sulfur atom;
or a salt thereof.
下式(1)所代表的
哒嗪衍
生物:
其中
R1
代表苯基或
吡啶基,可被 1 至 3 个选自卤素原子和 C1-6 烷氧基的取代基取代、
R2
代表至少在 4 位被 C1-6 烷氧基、C1-6 烷
硫基、C1-6 烷基亚磺酰基或 C1-6 烷基磺酰基取代的苯基,并可选择在另一位置被 1 或 2 个选自卤素原子、C1-6 烷氧基、C1-6 烷
硫基、C1-6 烷基亚磺酰基或 C1-6 烷基磺酰基的取代基取代、
R3
代表 C1-6 烷氧基、
氟化 C1-6 烷基、C1-6 烷基或 C3-8 环烷基、
A
代表单键或直链或支链 C1-6 烯基或 C2-9 烯基、
X
代表氧原子或
硫原子;
或其盐。