以无溶剂4组分Ugi反应合成关键含氟中间体,然后经三氟乙酸脱除保护基,合成了8种新型含氟Philanthotoxin-12衍生物. 重要的中间体和目标化合物的结构经~1H NMR、~(13)C NMR和HRMS或MS测试技术的确认. 对目标化合物进行了初步的杀虫活性测试,其中含氟的化合物6b在100 mg/L浓度下对棉铃虫和菜青虫的杀死率分别为44%和42%.
Eight novel fluorine-containing PhTX-12 derivatives were prepared from the intermediate obtained via one-pot Ugi four-component solvent-free reactions by the simple removal of the protecting groups in the presence of trifluoroacetic acid. Their structures were identified by ~1H NMR, ~(13)C NMR and HRMS or MS. Preliminary bioassays indicate that compound 6b showed 44% and 42% mortality rates against Heliothis armigera and Pieris rapae respectively at a concentration of 100 mg/L.
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