Insights Into Targeting the SARS-CoV-2: Design, Synthesis, In Silico Studies and Antiviral Evaluation of New Dimethylxanthine Derivatives
作者:Abdalla R. Mohamed、Ahmed Mostafa、Mahmoud A. El Hassab、Gomaa M. Hedeab、Sara H. Mahmoud、Riham F. George、Hanan H. Georgey、Nagwa M. Abdel Gawad、Mohamed K. El-Ashrey
DOI:10.1039/d3md00056g
日期:——
structure information of both targets. The designed pathways involved rationalized hybridization with large sulfonamide moieties and a carboxamide fragment for the synthesis of ten new dimethylxanthine derivatives. The synthesis was performed under diverse conditions to afford N-alkylated xanthine derivatives, and cyclization afforded tricyclic compounds. Molecular modeling simulations were used to confirm
为了实现针对严重急性呼吸综合征冠状病毒(SARS-CoV-2)的有效活性,我们的研究小组最近报道了基于结构和配体的药物设计方法的扩展。嘌呤环是 SARS-CoV-2 主要蛋白酶 (M pro ) 抑制剂开发的基石。基于杂交和基于片段的方法,精心设计了特殊的嘌呤支架以实现额外的亲和力。因此,利用了抑制 SARS-CoV-2 的 M pro和 RNA 依赖性 RNA 聚合酶 (RdRp) 所需的特征药效团特征以及两个靶标的晶体结构信息。设计的途径涉及与大磺酰胺部分和甲酰胺片段的合理杂交,用于合成十种新的二甲基黄嘌呤衍生物。在不同的条件下进行合成,得到N-烷基化黄嘌呤衍生物,环化得到三环化合物。分子建模模拟用于确认和深入了解两个目标活性位点的结合相互作用。根据设计化合物和计算机研究的优点,我们选择了三种化合物进行体外评估,以估计其针对 SARS-CoV-2 的抗病毒活性(化合物5、9a和19 ,IC
Improvement of antibacterial activity of some sulfa drugs through linkage to certain phthalazin-1(2H)-one scaffolds
作者:Hany S. Ibrahim、Wagdy M. Eldehna、Hatem A. Abdel-Aziz、Mahmoud M. Elaasser、Marwa M. Abdel-Aziz
DOI:10.1016/j.ejmech.2014.08.016
日期:2014.10
phthalazine moiety. Similarly, our strategy in this research depends on the interconnection between some sulfa drugs and certain phthalazin-1(2H)-one scaffolds in an attempt to enhance their antibacterial activity. This approach was achieved through the combination of 4-substituted phthalazin-1(2H)-ones 9a, b or 14a, b with sulfanilamide 1a, sulfathiazole 1b or sulfadiazine 1c through amide linkers 6a