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Updated: Jun 12, 2025

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Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Published on: June 23, 2019
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作为除草剂候选物的新型propionamide-methylpyrazole碳酸盐的合成
Susu Sun1, Song Kou1, Wenfei Wang1
1College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China.
Journal of agricultural and food chemistry
|September 18, 2024
概括
开发了针对转基因酶 (TKL) 的新型除草剂. 化合物D15和D20表现出强烈的除草剂活性,对阿玛朗修斯逆和血虫具有强大的抗除草剂作用,其性能优于现有的药物.
科学领域:
- 农业化学 农业化学
- 植物科学 植物科学
- 生物化学 生物化学
背景情况:
- 转基酶 (TKL) 是植物代谢中的关键酶,也是除草剂开发的潜在目标.
- 现有的除草剂面临着耐药性和有效性的挑战,需要发现新的作用模式.
- 3-oxopropionamide-1-methylpyrazole碳酸盐类似物代表了除草剂研究的新化学品类.
研究的目的:
- 设计,合成和评估新型的3-oxopropionamide-1-methylpyrazole碳酸盐类似物作为潜在的TKL抑制剂和除草剂.
- 评估合成化合物对关键杂草物种的除草剂疗效.
- 研究对TKL酶活性和分子相互作用的抑制作用机制.
主要方法:
- 一系列3-oxopropionamide-1-methylpyrazole碳酸盐类似物的合成.
- 使用小杯和前/后出现试验,对Amaranthus retroflexus和Digitaria sanguinalis的除草剂活性进行体外评估.
- 对TKL活性进行酶抑制试验 (IC50测定).
- 分子对接和分子动力学模拟以研究与Setaria viridis TKL的相互作用.
主要成果:
- 化合物D15和D20与尼科苏尔富和梅索相比,表现出优异的Amaranthus retroflexus生长抑制.
- D15在200 mg/L的剂量下实现了90%以上的Digitaria sanguinalis根茎抑制,在150 g ai/ha的剂量下实现了90%以上的出现前抑制.
- D20在150gai/ha的剂量下显示出>90%的Amaranthus retroflexus出现后抑制,表现优于对照组.
- D15和D20表现出强大的TKL抑制,IC50值分别为0.384和0.655 mg/L.
- 分子模拟表明,D15和D20与Setaria viridis TKL.有有利的结合.
结论:
- 化合物D15和D20是有效的新型除草剂,具有针对TKL的有希望的作用机制.
- 这些化合物显示出对控制Amaranthus retroflexus和Digitaria sanguinalis的巨大潜力,性能优于当前的市场标准.
- 进一步优化D15和D20可能会导致开发新的,高效的除草剂.
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