The broad spectrum acaricides spirodiclofen (BAJ2740, trade name: Envidor®) and spiromesifen (BSN2060, trade name: Oberon®) with an additional excellent activity against whiteflies, both belong to the new chemical class of tetronic acid derivatives discovered
at Bayer CropScience during the 1990s. The discovery process starting from herbicidal PPO (protoporphyrinogen oxidase) chemistry, the synthetic routes leading to the products, and some insight into process development of central intermediates is given. Spirodiclofen and spiromesifen have a
new mode of action (interference with lipid biosynthesis), show no cross-resistance to any resistant mite or whitefly field population and are therefore valuable tools for resistance management.
广谱杀螨剂斯比羧菲(BAJ2740,商品名:Envidor®)和斯比菌酯(BSN2060,商品名:Oberon®)对烟粉虱有额外优异的活性,均属于拜耳作物科学在1990年代发现的新化学类别——四酮酸衍生物。从除草剂PPO(原卟啉原氧化酶)化学开始的发现过程,导致产品的合成路线,以及对中间体的过程开发的一些见解。斯比羧菲和斯比菌酯具有新的作用方式(干扰脂质生物合成),不对任何抗性螨虫或烟粉虱野外种群产生交叉抗性,因此是抗性管理的宝贵工具。