| 摘要 |
A pyridazine derivative represented by the following formula (1):
wherein
R 1
represents a phenyl or pyridyl group which may be substituted by 1 to 3 substituents selected from a halogen atom and a C 1-6 alkoxyl group,
R 2
represents a phenyl group substituted at least at 4-position by a C 1-6 alkoxyl group, C 1-6 alkylthio group, a C 1-6 alkylsulfinyl group, or a C 1-6 alkylsulfonyl group, and optionally has one or more substituents at the other position by 1 or 2 substituents selected from a halogen atom, a C 1-6 alkoxyl group, C 1-6 alkylthio group, a C 1-6 alkylsulfinyl group, or a C 1-6 alkylsulfonyl group,
R 3
represents a C 1-6 alkoxyl group, a fluorinated C 1-6 alkyl group, C 1-6 alkyl group or a C 3-8 cycloalkyl group,
A
represents a single bond or linear or branched C 1-6 alkylene group or C 2-9 alkenylene group,
X
represents an oxygen atom or a sulfur atom;
or a salt thereof. |
