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发明授权
US5428047A Use of substituted 1,2,4-oxadiazole derivatives for combating endoparasites, new substituted 1,2,4-oxadiazole derivatives, and processes for their preparation 失效
使用取代的1,2,4-恶二唑衍生物对抗内寄生虫，新的取代的1,2,4-恶二唑衍生物及其制备方法

Use of substituted 1,2,4-oxadiazole derivatives for combating endoparasites, new substituted 1,2,4-oxadiazole derivatives, and processes for their preparation
摘要：
The present invention relates to the use of substituted 1,2,4-oxadiazole derivatives of the general formula I ##STR1## in which R.sup.1 represents hydrogen, alkyl which is optionally substituted by halogen, alkoxy, hydroxyl, amino, alkylamino, dialkylamino, cycloalkylamino as well as cycloalkyl, optionally substituted aryl or hetaryl,R.sup.2 represents hydrogen and alkyl,X represents O, S, SO, SO.sub.2 and N-R.sup.3,R.sup.3 represents hydrogen, alkyl, alkylcarbonyl or halogenoalkylcarbonylR.sup.4 represents identical or different radicals from the series comprising hydrogen, halogen, cyano, nitro, isothiocyanato, amino, aminoacyl, alkylamino, dialkylamino, trialkylammonium halide, sulphonylamino, hydroxyl, mercapto, alkyl, aralkyl, halogenoalkyl, alkoxy, aralkoxy, halogenoalkoxy, aryl, aryloxy, arylthio, arylsulphinyl, arylsulphonyl, alkylthio, halogenoalkylthio, alkylsulphinyl, halogenoalkylsulphinyl, alkylsulphonyl, halogenoalkylsulphonyl, alkoxycarbonyl, alkylcarbonyl, alkylcarbonyloxy, alkoxyalkyl, alkoxyalkoxy, hydroxyalkoxy, hetarylmethyleneoxy,for combating endoparasites in medicine and veterinary medicine, and new compounds of the formula (I) and their preparation.
摘要（中）：

本发明涉及通式Ⅰ的取代的1,2,4-恶二唑衍生物（Ⅰ），其中R1代表氢，任选被卤素，烷氧基，羟基，氨基，烷基氨基， 二烷基氨基，环烷基氨基以及环烷基，任选取代的芳基或杂芳基，R 2表示氢和烷基，X表示O，S，SO，SO 2和N-R 3，R 3表示氢，烷基，烷基羰基或卤代烷基羰基R 4表示相同或不同的基团， 氨基，氨基酰基，烷基氨基，二烷基氨基，三烷基卤化铵，磺酰基氨基，羟基，巯基，烷基，芳烷基，卤代烷基，烷氧基，芳烷氧基，卤代烷氧基，芳基，芳氧基，芳硫基，芳基亚磺酰基， 芳基磺酰基，烷硫基，卤代烷硫基，烷基亚磺酰基，卤代烷基亚磺酰基，烷基磺酰基，卤代烷基磺酰基，烷氧基羰基，烷基羰基，烷基羰基氧基，烷氧基烷基，烷氧基 烷氧基，羟基烷氧基，杂芳基亚甲氧基，用于对抗医药和兽药中的内寄生虫，以及式（I）的新化合物及其制备。

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