In this study, thirteen phthalimide derivatives were designed and synthesized. All synthesized compounds were evaluated to determine their potential for inhibitory activities against females of the Caribbean fruit fly, Anastrepha suspensa (Loew) (Diptera: Tephritidae). These efforts led to the discovery of three compounds 4a, 4c, and 4d with potent insecticidal activity (LD50 range from 0.70 to 1.91 μg/fly). Among these compounds, 4a exhibited the highest inhibitory potency with 0.70 μg/fly. In addition, in silico models indicated that compound 4a is less toxic than phthalimide and other precursors. Therefore, our results suggest that 4a has strong potential as a candidate component for developing a novel environmentally friendly insecticide for control of pest fruit flies.
本研究设计并合成了十三种邻苯二甲酰亚胺衍生物。对所有合成的化合物进行了评估,以确定它们对加勒比果蝇 Anastrepha suspensa (Loew)(双翅目:头蝇科)雌蝇的潜在抑制活性。通过这些努力,发现了三种化合物 4a、4c 和 4d,它们具有很强的杀虫活性(半数致死剂量范围为 0.70 至 1.91 微克/只)。在这些化合物中,4a 的抑虫效力最高,为 0.70 微克/只。此外,硅学模型表明,化合物 4a 的毒性低于邻苯二甲酰亚胺和其他前体。因此,我们的研究结果表明,4a 很有可能成为开发新型环境友好型杀虫剂的候选成分,用于控制害虫果蝇。