通过S-烷基化衍生物在浓H 2 SO 4中的环化反应,合成了一系列的5H-噻唑并[3,2-a]嘧啶-5-酮。在不同温度下处理S-烷基化衍生物时,发生分子内环化为7-(取代的苯氨基)-5H-噻唑并[3,2-a]嘧啶-5-酮或将环化产物磺化为磺酸衍生物。通过IR,1 H-NMR,(13)C-NMR和HRMS研究证实了目标化合物的结构。评估了这些化合物对某些革兰氏阳性和革兰氏阴性细菌的初步体外抗菌活性,并通过肉汤稀释测定法筛选了对结核分枝杆菌的抗结核活性。一些化合物表现出良好的抗菌和抗结核活性。
Structural-based design, synthesis, and antitumor activity of novel alloxazine analogues with potential selective kinase inhibition
作者:Waleed H. Malki、Ahmed M. Gouda、Hamdy E.A. Ali、Rabaa Al-Rousan、Doaa Samaha、Ashraf N. Abdalla、Juan Bustamante、Zakaria Y. Abd Elmageed、Hamed I. Ali
DOI:10.1016/j.ejmech.2018.04.029
日期:2018.5
Protein kinases are promising therapeutic targets for cancer therapy. Here, we applied multiple approaches to optimize the potency and selectivity of our reported alloxazine scaffold. Flexible moieties at position 2 of the hetero-tricyclic system were incorporated to fit into the ATP binding site and extend to the adjacent allosteric site and selectively inhibit protein kinases. This design led to
Antitumor studies. Part 4: Design, synthesis, antitumor activity, and molecular docking study of novel 2-substituted 2-deoxoflavin-5-oxides, 2-deoxoalloxazine-5-oxides, and their 5-deaza analogs
作者:Hamed I. Ali、Noriyuki Ashida、Tomohisa Nagamatsu
DOI:10.1016/j.bmc.2007.10.014
日期:2008.1
N(3)-alkylation of 2-deoxo-2-methylthioalloxazine-5-oxides was carried out with various alkylating agents in the usual way. The antitumoractivities against CCRF-HSB-2 and KB tumor cells have been investigated in vitro, and many compounds showed promising antitumoractivities. Furthermore, AutoDock molecular docking into PTK (PDB: 1t46) has been done for lead optimization of the aforementioned compounds
Synthesis, Antibacterial and Antitubercular Activities of Some 5H-Thiazolo[3,2-a]pyrimidin-5-ones and Sulfonic Acid Derivatives
作者:Dong Cai、Zhi-Hua Zhang、Yu Chen、Xin-Jia Yan、Liang-Jing Zou、Ya-Xin Wang、Xue-Qi Liu
DOI:10.3390/molecules200916419
日期:——
to sulfonic acid derivatives occurred. The structures of the target compounds were confirmed by IR, ¹H-NMR, (13)C-NMR and HRMS studies. The compounds were evaluated for their preliminary in vitroantibacterialactivity against some Gram-positive and Gram-negative bacteria and screened for antitubercular activity against Mycobacterium tuberculosis by the broth dilution assay method. Some compounds showed
通过S-烷基化衍生物在浓H 2 SO 4中的环化反应,合成了一系列的5H-噻唑并[3,2-a]嘧啶-5-酮。在不同温度下处理S-烷基化衍生物时,发生分子内环化为7-(取代的苯氨基)-5H-噻唑并[3,2-a]嘧啶-5-酮或将环化产物磺化为磺酸衍生物。通过IR,1 H-NMR,(13)C-NMR和HRMS研究证实了目标化合物的结构。评估了这些化合物对某些革兰氏阳性和革兰氏阴性细菌的初步体外抗菌活性,并通过肉汤稀释测定法筛选了对结核分枝杆菌的抗结核活性。一些化合物表现出良好的抗菌和抗结核活性。