申请人:Sankyo Company Limited
公开号:US04304778A1
公开(公告)日:1981-12-08
4-Aminoquinazoline derivatives of formula (I): ##STR1## (wherein: R.sup.1 represents an alkyl group, a cycloalkyl group, an alkenyl group or a benzyl group; R.sup.2 and R.sup.3 are the same or different and each represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; X represents a straight or branched chain alkylene group; and n is 0 or 1) and salts and hydrates thereof are valuable fungicidal, anti-insect (insect-repellent and insecticidal) and acaricidal compounds and thus can be used to treat or prevent many diseases affecting agricultural and horticultural plants, while, at the same time, having a much lower toxicity to fish than is exhibited by other known compounds.
式(I)中的4-氨基喹唑啉衍生物:##STR1##(其中:R.sup.1代表烷基,环烷基,烯基或苄基;R.sup.2和R.sup.3相同或不同,分别代表氢原子,烷基,烷氧基或卤素原子;X代表直链或支链烷基;n为0或1),以及它们的盐和水合物是有价值的杀菌剂,防虫剂(驱虫和杀虫)和杀螨剂,因此可用于治疗或预防影响农业和园艺植物的许多疾病,同时比其他已知化合物对鱼类的毒性低得多。