| 摘要 |
<p>A milbemycin derivative represented by general formula (I) and having potent insecticidal, miticidal, nematocidal and anthelmintic activities wherein: R1 represents methyl, ethyl, isopropyl or secbutyl; R2 represents C¿1?-C3 alkyl; and Y represents optionally substituted C2-C3 alkanoyl, C1-C3 alkylsulfonyl, C2-C5 alkoxycarbonyl, optionally substituted amino-C2-C7-alkanoyl, 5- or 6-membered lactam carbonyl, saturated 5- or 6-membered heterocyclic carbonyl, or $(g)a-(C1-C3 alkoxyimino)-$(g)a-(5- or 6-membered heteroaryl)-acetyl.</p> |
