Synthesis, Biological Evaluation and In Silico Computational Studies of 7-Chloro-4-(1-1,2,3-triazol-1-yl)quinoline Derivatives: Search for New Controlling Agents against (Lepidoptera: Noctuidae) Larvae.

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ID: 4774
2019
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Abstract
The insecticidal and antifeedant activities of five 7-chloro-4-(1-1,2,3-triazol-1-yl)quinoline derivatives were evaluated against the maize armyworm, (J.E. Smith). These hybrids were prepared through a copper-catalyzed azide alkyne cycloaddition (CuAAC, known as a click reaction) and displayed larvicidal properties with LD values below 3 mg/g insect, and triazolyl-quinoline hybrid showed an LD of 0.65 mg/g insect, making it 2-fold less potent than methomyl, which was used as a reference insecticide (LD = 0.34 mg/g insect). Compound was the most active antifeedant derivative (CE = 162.1 μg/mL) with a good antifeedant index (56-79%) at concentrations of 250-1000 μg/mL. Additionally, triazolyl-quinoline hybrids - exhibited weak inhibitory activity against commercial acetylcholinesterase from (electric-eel AChE) (IC = 27.7 μg/mL) as well as low anti-ChE activity on larvae homogenate (IC = 68.4 μg/mL). Finally, molecular docking simulations suggested that hybrid binds to the catalytic active site (CAS) of this enzyme and around the rim of the enzyme cavity, acting as a mixed (competitive and noncompetitive) inhibitor like methomyl. Triazolyl-quinolines - and inhibit AChE by binding over the perimeter of the enzyme cavity, functioning as noncompetitive inhibitors. The results described in this work can help to identify lead triazole structures from click chemistry for the development of insecticide and deterrent products against and related insect pests.
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Authors Doris Natalia Rosado-Solano, Mario Alberto Barón-Rodríguez, Pedro Luis Sanabria Florez, Luz Karime Luna-Parada, Carlos Eduardo Puerto-Galvis, Andrés Felipe Zorro-González, Vladimir V Kouznetsov, Leonor Yamile Vargas-Méndez
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Journal Journal of agricultural and food chemistry
Year 2019
DOI
10.1021/acs.jafc.9b01067
URL
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