small molecule inhibitor to the hydrophobic region of the membrane-bound bacterialcellwallsynthesis enzyme and the plasma membrane. In the present study, a total of 20 new amphiphilic compounds were systematically designed and the relationship between molecular hydrophobicity and the antibacterial activity by targeting at PGT was demonstrated. The in vitro lipid II transglycosylation inhibitory effects
Moenomycin A是著名的肽聚糖糖基转移酶(PGT)天然产物抑制剂,是一种两亲性大分子,分子量为1583 g / mol,作为药物的生物利用度相对较差。在寻找针对该酶的具有高抑制能力的小分子配体时,我们发现向细菌PGT的基于伊斯汀的抑制剂中添加疏水基团可显着改善其对酶的抑制作用以及其抗菌活性。酶促抑制作用的改善可归因于小分子抑制剂与膜结合细菌细胞壁合成酶和质膜的疏水区更好的结合。在目前的研究中,总共系统地设计了20种新的两亲化合物,并证明了针对PGT的分子疏水性与抗菌活性之间的关系。的研究了化合物II对脂质体E. coli PBP1b和MIC的体外脂质II转糖基化抑制作用(IC 50)。优化的结果包括对MSSA,MRSA 6微克/毫升的MIC值,枯草芽孢杆菌和12微克/ mL的大肠杆菌用靛红衍生物得到5米其具有335克/摩尔的分子量。
Iodoquinazolinones bearing benzenesulfonamide as human carbonic anhydrase I, II, IX and XII inhibitors: Synthesis, biological evaluation and radiosensitizing activity
作者:Aiten M. Soliman、Mostafa M. Ghorab、Silvia Bua、Claudiu T. Supuran
DOI:10.1016/j.ejmech.2020.112449
日期:2020.8
of iodinated quinazolinones carrying benzenesulfonamide moiety as carbonicanhydrase (CA, EC 4.2.1.1) inhibitors. The target compounds showed promising inhibitory activity against the four examined human (h) CA isoforms; I, II, IX and XII. Compounds 4-18 displayed variable inhibition constants, ranging as follows: 7.6–782.8 nM for hCA I, 34.4–412.1 nM for hCA II, 29.1–2225.3 nM for hCA IX and 8.8–429
在本工作中,我们报告了一组设计和合成的碘化喹唑啉酮类化合物,它们带有苯磺酰胺部分作为碳酸酐酶(CA,EC 4.2.1.1)抑制剂。目标化合物对四种被检测的人(h)CA同工型均显示出有希望的抑制活性。I,II,IX和XII。化合物4-18显示出可变的抑制常数,范围如下:hCA I为7.6–782.8 nM,hCA II为34.4–412.1 nM,hCA IX为29.1–2225.3 nM,hCA XII为8.8–429.4 nM。化合物9是最有效的抗肿瘤特异性CA IX / CA XII(K I = 29.1和8.8 nM)的化合物,有可能在体外评估其对HepG-2,HCT-116和MCF-7癌细胞的细胞毒性和选择性线。化合物9对肿瘤细胞系具有显着的细胞毒性(分别为IC 50 = 1.78、1.94和3.07μM),对WI38正常细胞系的毒性相对较低。在接受单剂量的8 Gyγ射线照
The Antiproliferative and Apoptotic Effects of a Novel Quinazoline Carrying Substituted-Sulfonamides: In Vitro and Molecular Docking Study
作者:Ali S. Alqahtani、Mostafa M. Ghorab、Fahd A. Nasr、Mohammad Z. Ahmed、Abdullah A. Al-Mishari、Sabry M. Attia
DOI:10.3390/molecules27030981
日期:——
effective and safe anticancer drug, we synthesized a novel series of quinazoline containing biologically active substituted-sulfonamide moiety at 3- position 4a–n. The structure of the newly prepared compounds was proved by microanalysis, IR, 1H-NMR, 13C-NMR and mass spectral data. All the synthesized compounds were evaluated for their in vitro cytotoxic activity in numerous cancercelllines including A549