Inactivating Activities and Mechanism of Imidazo[1,2-<i>c</i>]pyrimidin-5(6<i>H</i>)-one Nucleoside Derivatives Incorporating a Sulfonamide Scaffold
作者:Yuyuan Yang、Runjiang Song、Limin Yin、Kelei Han、Fei Yan、Baoan Song
DOI:10.1021/acs.jafc.2c08129
日期:2023.5.31
Twenty-eight imidazo[1,2-c]pyrimidin-5(6H)-one nucleoside derivatives incorporating a sulfonamide scaffold with preferable inactivating activities on pepper mild mottle virus (PMMoV) were designed and synthesized. Then, compound B29 with illustrious inactivating activity against PMMoV was received on the basis of the three-dimensional quantitative structure–activity relationship (3D-QSAR) model, with
设计并合成了28 种咪唑并[1,2- c ]嘧啶-5(6 H )-1 核苷衍生物,它们结合了磺胺类支架,对胡椒轻斑驳病毒 (PMMoV) 具有较好的灭活活性。然后,基于三维定量构效关系(3D-QSAR)模型得到对PMMoV具有显着灭活活性的化合物B29 ,EC 50为11.4 μg/mL,优于宁南霉素(65.8 μg) /mL) 和模板分子B16 (15.3 μg/mL)。此外,(1) 透射电子显微镜 (TEM) 表明B29可能导致病毒颗粒严重破裂;(2) 微量热泳(MST)和分子对接进一步证明B29与PMMoV CP R62A ( K d = 202.84 μM), PMMoV CP L144A ( K d = 141.57 μM), PMMoV CP R62A,L144A ( K d = 332.06 μM) 与 PMMoV CP ( K d = 4.76 μM)相比;(3) pCB-GFP-PMMoV