[Objective]This study aimed to isolate and identify the insecticidal compound produced by the Streptomyces strain.[Method]Extraction,PTLC,HPLC,and other instrumental analysis were applied to obtain the bioactive compo...[Objective]This study aimed to isolate and identify the insecticidal compound produced by the Streptomyces strain.[Method]Extraction,PTLC,HPLC,and other instrumental analysis were applied to obtain the bioactive compound.[Result]Yellow-white crystals were obtained and their MS and NMR spectra were analyzed.[Conclusion]Crystals were identified as the analogue of dimeric dinactin.展开更多
A series of novel bridged-neonicotinoid analogues were designed and synthesized, which were constructed by starting material 8 with cyclopentenone or cyclohexenone in the presence of catalyst aluminium chloride. All o...A series of novel bridged-neonicotinoid analogues were designed and synthesized, which were constructed by starting material 8 with cyclopentenone or cyclohexenone in the presence of catalyst aluminium chloride. All of the compounds were characterized and confirmed by^1H NMR,^（13）C NMR, HRMS and IR. The bioassay tests showed that compounds 5 and 6a showed higher bioactivities than imidacloprid against Aphis craccivora.展开更多
基金Supported by Project of Science and Technology Research for Colleges and Universities in Hebei Province(Z 2011151)National Natural Science Foundation of China(No.30970010)Key Discipline of Bioengineering in Hebei Province
文摘[Objective]This study aimed to isolate and identify the insecticidal compound produced by the Streptomyces strain.[Method]Extraction,PTLC,HPLC,and other instrumental analysis were applied to obtain the bioactive compound.[Result]Yellow-white crystals were obtained and their MS and NMR spectra were analyzed.[Conclusion]Crystals were identified as the analogue of dimeric dinactin.
基金financial supported by Shandong Provincial Natural Science Foundation (No. ZR2015BL009)The Key Research and Development Program of Shandong Provincial (No. 2016GGX107006)+1 种基金National Natural Science Foundation of China (No. 21501066)the Opening Project of Shanghai Key Laboratory of Chemical Biology
文摘A series of novel bridged-neonicotinoid analogues were designed and synthesized, which were constructed by starting material 8 with cyclopentenone or cyclohexenone in the presence of catalyst aluminium chloride. All of the compounds were characterized and confirmed by^1H NMR,^（13）C NMR, HRMS and IR. The bioassay tests showed that compounds 5 and 6a showed higher bioactivities than imidacloprid against Aphis craccivora.
