| 摘要 |
Pesticides or veterinary drugs containing compounds represented by general formula (I), salts thereof or hydrates of the same wherein R<1> and R<4> are the same or different and each represents hydrogen, hydroxy, optionally substituted lower alkoxy or optionally substituted lower acyloxy; R<2> and R<3> are the same or different and each represents hydrogen, halogeno or optionally substituted alkyl; and A represents optionally substituted heteroaryl. |
