高等学校化学研究 ›› 2014, Vol. 30 ›› Issue (6): 931-936.doi: 10.1007/s40242-014-4191-y
FANG Ting1,3, SUN Chuanwen1, XU Yiyi1, YUAN Jing1, WANG Yuanfeng1, XING Jiahua2
FANG Ting1,3, SUN Chuanwen1, XU Yiyi1, YUAN Jing1, WANG Yuanfeng1, XING Jiahua2
摘要:
To make further studies on the difference of cis-nitenpyram analogues, a series of cis-nitenpyram compounds containing a flexible amido segment anchored on tetrahydropyrimidine ring was designed and synthesized. Preliminary bioassays indicate that all the analogues exhibit a mortality of 100% at 100 mg/L, and the analogue 4d shows the best activity against Nilaparvata lugens and Myzus persicae, with a mortality of 100% at 4 mg/L (LC50=0.172 mg/L). The structure activity relationship studies show that insecticidal activities of the analogues are affected by the kinds and size of substituent R. In addition, the molecular docking simulations reveal that compouds 4 with a flexible amido segment on tetrahydropyrimidine ring show their different binding affinities for the nicotinic acetylcholine receptor(nAChR) of insect and compoud 4d shows stronger hydrogen-bonding with nAChR, which may provide the structure-activity relationship observed in vitro.