农药研发已进入安全、高效、环保的时代。直接或间接从植物次生代谢产物中发现有效的活性产物作为农药候选物一直是当前的研究重点之一。在此,通过对天然香豆素型产物蛇床子素的 C-4' 位进行结构修饰,制备了两个系列的新型酯和酰胺衍生物。它们的结构通过 IR、mp、1 H NMR 和 HRMS 进行了表征。七种化合物的立体构型的确认是基于单晶分析。对抗朱砂叶螨(Acari: Tetranychidae), (2' E )-3'-ethoxycarbonylosthole ( 4b ) 和 (2' E )-3'-(n )己氧基羰基蛇床子素( 4e )的杀螨活性是蛇床子素的3.2倍和3.1倍,特别是在蛇床子素的第5天,它们的防治效率也分别为2.4和2.2倍。针对Aphis citricola Van der Goot (Homoptera: Aphididae)、(2' E )-3'-( p -CF 3
Synthesis and Biological Evaluation of Novel Osthol Derivatives as Potent Cytotoxic Agents
作者:Saleem Farooq、Javid A. Banday、Aashiq Hussain、Momina Nazir、Mushtaq A. Qurishi、Abid Hamid、Surrinder Koul
DOI:10.2174/1573406414666180911161047
日期:2019.2.12
negative control to 26.9% at 8μM concentration of 28. Compound 28 also induced a remarkable decrease in mitochondrial membrane potential (ΛΨm) leading to apoptosis of the cancer cells. Conclusion: A novel series of molecules derived from natural product osthol were synthesized, wherein compound 28 was found to be most effective against leukemia and with 10 fold less toxicity against normal cells. The
and development has entered an era of safety, efficiency, and environmental friendliness. Discovery of effective active products directly or indirectly from plant secondary metabolites as pesticide candidates has been one of the current research focuses. Herein, two series of new ester and amide derivatives were prepared by structural modifications of a natural coumarin-type product osthole at its
农药研发已进入安全、高效、环保的时代。直接或间接从植物次生代谢产物中发现有效的活性产物作为农药候选物一直是当前的研究重点之一。在此,通过对天然香豆素型产物蛇床子素的 C-4' 位进行结构修饰,制备了两个系列的新型酯和酰胺衍生物。它们的结构通过 IR、mp、1 H NMR 和 HRMS 进行了表征。七种化合物的立体构型的确认是基于单晶分析。对抗朱砂叶螨(Acari: Tetranychidae), (2' E )-3'-ethoxycarbonylosthole ( 4b ) 和 (2' E )-3'-(n )己氧基羰基蛇床子素( 4e )的杀螨活性是蛇床子素的3.2倍和3.1倍,特别是在蛇床子素的第5天,它们的防治效率也分别为2.4和2.2倍。针对Aphis citricola Van der Goot (Homoptera: Aphididae)、(2' E )-3'-( p -CF 3