Synthesis, Crystal Structures, and Biological Activity Evaluation of Novel Xanthine Derivatives Containing a Pyrethroid Moiety
作者:Shuyun Zhang、Lei Wang、Hang Liu、Na Yang、Shujing Yu、Baolei Wang
DOI:10.1021/acs.jafc.2c03876
日期:2022.10.5
and pyrethroid insecticides, a series of novel xanthine derivatives Ia–Is containing pyrethroid motifs were synthesized and identified by means of melting points, 1H NMR, 13C NMR, and HRMS. The single crystals of compounds In and Iq were obtained, which further confirmed the structures and configurations of this type of compounds. The biological tests showed that some of them exhibited favorable insecticidal
在天然黄嘌呤类和拟除虫菊酯类杀虫剂结构的基础上,合成了一系列含有拟除虫菊酯基序的新型黄嘌呤衍生物Ia-Is,并通过熔点、1 H NMR、13 C NMR 和 HRMS 鉴定。得到了化合物In和Iq的单晶,进一步证实了该类化合物的结构和构型。生物学试验表明,其中一些对Mythimna separata Walker和Plutella xylostella L.表现出良好的杀虫活性,优于天然甲基黄嘌呤化合物咖啡因,与杀虫剂菊酯(如复方Im:LC 50 = 0.6162 mg/L,针对小菜蛾)。其中,Im、Ib、Ij和Ik可以作为新的杀虫主导结构进行进一步研究。此外,一些化合物对广谱植物病原真菌表现出良好的杀真菌活性(例如,化合物Ie:EC 50 = 6.0922 μg/mL,对Physalospora piricola;EC 50 = 9.0637 μg/mL,对谷丝核菌),这反过来,这将是黄嘌呤化学中令人兴奋的新发现;即