[EN] FORMULATIONS OF N-OXIDE PRODRUGS OF LOCAL ANESTHETICS FOR THE TREATMENT OF PULMONARY INFLAMMATION ASSOCIATED WITH ASTHMA, BROCHITIS, AND COPD [FR] PROMEDICAMENTS N-OXYDE D'ANESTHESIQUES LOCAUX DESTINES AU TRAITEMENT DE L'INFLAMMATION PULMONAIRE ASSOCIEE A L'ASTHME, A LA BRONCHITE ET A LA BPCO
A fast and efficient protocol for the synthesis of N,N'-disubstituted urea derivatives from alkyl halides and primary or secondary amines has been developed. The synthetic pathway combines nucleophilic substitutions and a Staudinger-aza-Wittig reaction in the presence of polymer-bound diphenylphosphine under 14 bar of CO2 pressure and has been performed in a one-pot two-step process. The protocol has
已开发出一种快速有效的方案,用于从烷基卤化物和伯胺或仲胺合成 N,N'-二取代脲衍生物。合成途径结合了亲核取代和 Staudinger-aza-Wittig 反应,在聚合物结合的二苯基膦存在下,在 14 bar 的 CO2 压力下,并在一个一锅两步法中进行。该协议在微波辐射下进行了优化,放大实验是在帕尔反应器的常规条件下进行的。最终化合物在简单过滤后以几乎定量的总产率分离,这使得该过程容易且快速执行。
Synthesis, biological evaluation, and docking study of a series of 1,4‐disubstituted 1,2,3‐triazole derivatives with an indole‐triazole‐peptide conjugate
作者:Srinivas Suryapeta、Neeraja Papigani、Venkanna Banothu、Pramod Kumar Dubey、Khagga Mukkanti、Sarbani Pal
DOI:10.1002/jhet.4020
日期:2020.8
synthesized derivatives were screened for their antimicrobial activitiesagainst one gram‐positive (Staphylococcus aureus ) and three gram‐negative (Escherichia coli , Klebsiella pneumonia , and Proteus vulgaris ) bacteria using an agar‐well diffusion method. Most of the compounds showed moderate to reasonable antibacterialactivities especially the compound 9e that showed good activitiesagainst all the
设计了一系列含有吲哚-三唑-肽共轭物的新化合物,作为具有双重抗菌和抗癌活性的潜在药物。因此,通过多步合成制备了20种化合物,其中包括铜催化的叠氮化物-炔烃环加成(CuAAC),这是中高收率的关键步骤。所有合成的化合物均通过色谱技术纯化,并通过IR,1 H和13 C NMR和质谱数据表征。筛选了合成衍生物对一种革兰氏阳性菌(金黄色葡萄球菌)和三种革兰氏阴性菌(大肠杆菌,克雷伯菌肺炎和普通变形杆菌(Proteus vulgaris)细菌采用琼脂井扩散法。大多数化合物显示出中等至合理的抗菌活性,尤其是化合物9e对所有菌株均表现出良好的活性。通过使用Autodock Vina软件在计算机上进行的分子对接研究,评估了该化合物的DNA促旋酶抑制活性的潜力。化合物9e的低ΔG结合值(-9.4 Kcal / mol)表明其与靶蛋白在计算机上具有良好的相互作用。使用人肺癌细胞系A549通过MTT分析评估了某
Discovery of Selective Histone Deacetylase 1 and 2 Inhibitors: Screening of a Focused Library Constructed by Click Chemistry, Kinetic Binding Analysis, and Biological Evaluation
the biological functions of the isoforms and as therapeutic agents for cancer and neurodegenerative disorders. To discover potent and selective inhibitors, we screened a focused library synthesized by using clickchemistry and obtained KPZ560 as an HDAC1/2-selective inhibitor. Kinetic binding analysis revealed that KPZ560 inhibits HDAC2 through a two-step slow-binding mechanism. In cellular assays
New phenylthiosemicarbazide‐phenoxy‐1,2,3‐triazole‐N‐phenylacetamides as dual inhibitors against α‐glucosidase and PTP‐1B for the treatment of type 2 diabetes
作者:Shirin Ansariashlaghi、Azadeh Fakhrioliaei、Maryam Mohammadi‐Khanaposhtani、Milad Noori、Mehdi Asadi、Somayeh Mojtabavi、Mohammad A. Faramarzi、Ensieh N. Esfahani、Hossein Rastegar、Bagher Larijani、Homa Azizian、Mohammad Mahdavi
DOI:10.1002/ardp.202300517
日期:2024.7
This study describes the design, synthesis, and evaluation of a novel series of phenylthiosemicarbazide-phenoxy-1,2,3-triazole-N-phenylacetamide derivatives (7a–l) as dual inhibitors of α-glucosidase and protein tyrosine phosphatase 1-B (PTB-1B). The latter enzymes are two important targets in the treatment of type 2 diabetes. The in vitro obtained data demonstrated that all title compounds 7a–l were
A series of 114 SIRT inhibitor candidates was assembled using 'click chemistry', by reacting two alkynes bearing 2-anilinobenzamide pharmacophore with 57 azide building blocks in the presence of Cu( I) catalyst. Screening identified two SIRT2-selective inhibitors, which were more SIRT2-selective than AGK2, a known SIRT2 inhibitor. These findings will be useful for further development of SIRT2-selective inhibitors. (C) 2014 Elsevier Ltd. All rights reserved.