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首页> 外文期刊>Pest Management Science >Te discovery of indoxacarb:oxadizines as a new class of pyrazoline-type insecticides
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Te discovery of indoxacarb:oxadizines as a new class of pyrazoline-type insecticides

机译:茚虫威:恶二嗪类作为新型吡唑啉类杀虫剂的发现

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摘要

The evolution of the insecticidal pyrazoline moiety that was originally discovered in 1972 has led to the discovery of a new crop insecticide, indoxacarb, which is the first commercialized pyrazo-line-type sodium-channel blocker. Both monocydic and fused-tricyclic pyrazolines and pyridazines, as well as structurally related semicarbazones were examined prior to the discovery of analogous tricydic oxadiazines which had similarly high activity as well as favorable environmental dissipation rates and low toxicity to non-target organisms. The eventual leading candidate, DPX-JW062, was originally obtained as a racemic molecule, but a chiral synthesis was developed which produces material that is 50% ee in the insecticidal (—i--)-S-enantiomer (DPX-MP062, indoxacarb).
机译:最初在1972年发现的杀虫性吡唑啉部分的进化导致发现了一种新的农用杀虫剂茚虫威,这是第一种商业化的吡唑啉型钠通道阻滞剂。在发现类似的三甲基恶二恶嗪之前,先检查了单环和稠合三环吡唑啉和哒嗪以及结构相关的半咔唑酮,它们具有相似的高活性,有利的环境消散率和对非目标生物的低毒性。最终的领先候选物DPX-JW062最初是作为外消旋分子获得的,但是开发了一种手性合成方法,该方法产生的杀虫性(-i-)-S-对映异构体(DPX-MP062,茚虫威)的材料为ee的50% )。

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