Zirconium catalyzed synthesis of 2-arylidene Indan-1,3-diones and evaluation of their inhibitory activity against NS2B-NS3 WNV protease
作者:Ana Flávia C. da S. Oliveira、Ana Paula M. de Souza、André S. de Oliveira、Milene L. da Silva、Fabrício M. de Oliveira、Edjon G. Santos、Ítalo Esposti P. da Silva、Rafaela S. Ferreira、Filipe S. Villela、Felipe T. Martins、Daniel H.S. Leal、Boniek G. Vaz、Róbson R. Teixeira、Sergio O. de Paula
DOI:10.1016/j.ejmech.2018.02.037
日期:2018.4
the synthesis of 2-arylidene indan-1,3-diones is herein reported. These compounds were prepared via ZrOCl2·8H2O catalyzed reactions of indan-1,3-dione with several aromatic aldehydes and using water as the solvent. The 2-arylidene indan-1,3-diones were obtained with 53%-95% yield within 10–45 min. The synthesized compounds were evaluated as inhibitors of the NS2B-NS3 protease of West Nile Virus (WNV)
本文报道了用于合成2-亚芳基茚满-1,3-二酮的简单而有效的Knoevenagel方法。这些化合物是通过ZrOCl2·8H2O催化indan-1,3-dione与几种芳族醛的反应,并用水作为溶剂制备的。在10–45分钟内获得2-芳基茚满-1,3-二酮,收率为53%-95%。评价合成的化合物作为西尼罗河病毒(WNV)的NS2B-NS3蛋白酶的抑制剂。发现羟基化衍生物以不同程度的效力损害酶活性。最具活性的羟基化衍生物,即2-(4-羟基亚苄基)-1 H-茚-1,3(2 H)-二酮(14)和2-(3,4-二羟基亚苄基)-1 H-茚1, 3(2小时) -二酮(17),被定性为非竞争性酶抑制剂,与IC 50个的11值 μ摩尔大号-1和3 μ摩尔大号-1分别。对接和静电势表面研究提供了对变构位点中最活泼的化合物可能的结合模式的见解。