| 摘要 |
<p>A termite-proofing agent containing at least either a compound represented by general formula [I] or a salt thereof as the active ingredient, wherein R1 represents pyridyl, pyrazinyl or thiazolyl each of which may be substituted; R2 represents hydrogen, optionally substituted alkyl, cycloalkyl or alkoxy; R3 represents hydrogen or optionally substituted alkyl; and R4 represents cyano or nitro.</p> |
