The protoporphyrinogen oxidase (PPO) enzyme is involved in the biosynthesis of chlorophyll and is an important target in research for development of new herbicides. In this study, new pyrimidinedione compounds with thioester tail group containing cyclopropyl moiety are synthesized from the commercially available 2‐(1‐(mercaptomethyl)cyclopropyl)acetic acid. The herbicidal activity of the synthesized compounds is also evaluated. Most of the synthesized compounds exhibit herbicidal activities against both monocot and dicot weeds. In particular, 10a showed similar activity to the control material, Saflufenacil. And when against the monocot weeds, Echinochloa crusgalli and Digitaria sanguinalis, 10a shows superior activity to Saflufenacil.

中文翻译：

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抑制原卟啉原氧化酶的除草剂环丙基酯和酰胺取代的嘧啶二酮的合成

原卟啉原氧化酶（PPO）参与叶绿素的生物合成，是开发新型除草剂的重要目标。在这项研究中，从市售的2-（1-（巯基甲基）环丙基）乙酸合成了具有硫酯尾基的具有环丙基部分的新型嘧啶二酮化合物。还评估了合成化合物的除草活性。大多数合成的化合物对单子叶和双子叶杂草均表现出除草活性。特别地，10a显示出与对照材料沙氟芬那类似的活性。而对单子叶杂草，当稗草和马唐，10A 表现出比氟苯那西更高的活性。