mycobacteria has limited the use of existing therapies, therefore new drugs are needed. Dihydrofolatereductase (DHFR) has recently attracted much attention as a target for the development of anti-TB agents. This study aimed to develop selective M. tuberculosis DHFR inhibitors using rationale scaffolding design and synthesis, phenotype-oriented screening, enzymatic inhibitory study, whole cell on-target validation
Fast and efficient intramolecular energy transfer takes place in the umbelliferone–alizarin bichromophore; the process is well described by the Förster mechanism.
在芹菜素-茜素双色团中发生快速高效的分子内能量转移;该过程很好地符合弗斯特机制的描述。
<i>Retracted:</i>
Synthesis, Molecular Properties, and Biological Evaluation of Hybrid 1,2,3‐Triazolylpolyaza Heterocyclic Compounds
this research article, a highly efficient, cost‐effective synthesis of various hybrid molecules possessing 1,2,3‐triazolyltetrazoles and evaluation of their biological activity have been addressed. The structure elucidation of these new library hybrid molecules has been carried out by IR, 1H NMR, 13C NMR, and mass spectral analysis. The compounds have been screened for their anticancer activity against
在这篇研究文章中,已经解决了具有1,2,3-三唑基四唑的各种杂合分子的高效,经济高效的合成及其生物活性的评价。这些新文库杂合分子的结构阐明已通过IR,1 H NMR,13 C NMR和质谱分析进行。筛选了这些化合物对人结肠癌细胞系Colo-205和人肺癌细胞HOP-205的抗癌活性,结果证明大多数化合物显示出非常好的治疗性质。特别是化合物3d,3j,6a和6e与阿霉素相比,它们对所有测试的人类癌细胞系的细胞毒性更高,分别增长68%,101.8%,94%和104.5%。在本研究中,对3a – j和6a – h系列进行了分子特性预测,Molinspiration进行了药物相似性评估以及Molsoft软件程序进行了毒性风险分析。所有18种类似物均基于Lipinski的“ 5条规则”进行合成,筛选其抗菌和抗癌药物为口服生物可利用药物/铅。
New coumarin-benzotriazole based hybrid molecules as inhibitors of acetylcholinesterase and amyloid aggregation
molecules are selective AChE inhibitors. 13b (most potent AChE inhibitor) also showed copper-induced Aβ1-42 aggregation inhibition (34.26 % at 50 μΜ) and chelating properties for metal ions (Cu2+, Fe2+, and Zn2+) involved in AD pathogenesis along with DNA protective potential against degenerative actions of ∙OH radicals. Molecular modelling studies confirm the potential of 13b in blocking both PAS and
coumarin-quinoline based fluorescence resonance energy transfer (FRET) system (TCQ) has been synthesized and employed as a ratiometric fluorescence probe. The selective fluorescent response of the probe TCQ toward Al3+ was devised by employing a quinoline moiety as a FRET energy donor with a coumarin moiety as an energy acceptor. The quinoline emission at 390 nm decreased and the coumarin emission at 480 nm