Synthesis and anti-viral activity of azolo-adamantanes against influenza A virus
摘要:
Chemotherapy and chemoprophylaxis of influenza is one of the most important directions of health protection activity. Due to the high rate of drug-resistant strains of influenza virus, there is a need for the search and further development of new potent antivirals against influenza with a broad spectrum of activity. In the present study, a set of di-, tri- and tetrazole derivatives of adamantane was efficiently prepared and their anti-influenza activities evaluated against rimantadine-resistant strain A/Puerto Rico/8/34. In general, derivatives of tetrazole possessed the highest virus-inhibiting activity. We demonstrated that several compounds of this set exhibited much higher activity than the currently used antiviral rimantadine, a compound of related structure. Moreover, we showed that these azolo-adamantanes were significantly less toxic. This study demonstrates that influenza viruses can be inhibited by adamantylazoles and thus have potential for developing antiviral agents with an alternate mechanism of action. (C) 2009 Elsevier Ltd. All rights reserved.
Batch Versus Flow Lithiation–Substitution of 1,3,4‐Oxadiazoles: Exploitation of Unstable Intermediates Using Flow Chemistry
作者:Jeff Y. F. Wong、John M. Tobin、Filipe Vilela、Graeme Barker
DOI:10.1002/chem.201902917
日期:2019.9.20
isolated yields. Notably, lithiation in batch at room temperature results only in ring fragmentation and we propose that the superior mixing in flow allows interception and exploitation of an unstableintermediate before decomposition can occur.
unstable thiocyanates. Organic thiocyanates and nitriles are converted efficiently into the corresponding 5-substituted 1H-tetrazoles by treatment with zinc(II) chloride and sodium azide in aliphatic alcohols. The presented procedure provides mild reaction conditions, short reaction times, and good to excellent yields for a wide range of substrates, including deactivated aliphatic nitriles and thermally unstable
[EN] FUSED BICYCLIC COMPOUNDS AS INHIBITORS FOR PI3 KINASE<br/>[FR] COMPOSÉS BICYCLIQUES FUSIONNÉS UTILISÉS COMME INHIBITEURS DE LA PI3 KINASE
申请人:MERCK SERONO SA
公开号:WO2010100144A1
公开(公告)日:2010-09-10
The invention relates to compounds of formula (I) for the regulation of phosphoinositides 3-kinases activity and related diseases.
该发明涉及用于调节磷脂酰肌醇3-激酶活性及相关疾病的化合物(I)的公式。
Catalytic conversion of 2,4,5-trisubstituted imidazole and 5-substituted 1H-tetrazole derivatives using a new series of half-sandwich (η6-p-cymene)Ruthenium(II) complexes with thiophene-2-carboxylic acid hydrazone ligands
作者:Govindasamy Vinoth、Sekar Indira、Madheswaran Bharathi、Govindhasamy Archana、Luis G. Alves、Ana M. Martins、Kuppannan Shanmuga Bharathi
DOI:10.1016/j.ica.2020.120089
日期:2021.2
The molecular structures of the ruthenium(II) complexes 1-3 were determined by single-crystal X-ray diffraction. All complexes were used as catalysts for the one-pot three-component syntheses of 2,4,5-trisubstitued imidazole and 5-substituted 1H-tetrazole derivatives. The catalytic studies optimized parameters as solvent, temperature and catalyst. The catalysts revealed very active for a broad range
摘要一系列新的半三明治(η6-对-cymene)钌(II)与噻吩-2-羧酸酰肼衍生物[Ru(η6-对-cymene)(Cl)(L)] [L = N' -(萘-1-基亚甲基)噻吩-2-碳酰肼(L1),N'-(蒽-9-基亚甲基)噻吩-2-碳酰肼(L2)和N'-(吡喃-1-基亚甲基)噻吩-2-合成了碳酰肼(L3)]。通过光谱(IR,UV-Vis,NMR和质谱)和元素分析对配体前体及其Ru(II)配合物(1-3)进行结构表征。钌(II)配合物1-3的分子结构通过单晶X射线衍射测定。所有配合物均用作催化剂,用于一锅三组分合成2,4,5-三取代的咪唑和5-取代的1H-四唑衍生物。催化研究优化了溶剂,温度和催化剂等参数。所述催化剂显示出对具有电子吸引子或电子给体取代基的广泛范围的芳族醛非常有效,并且尽管活性较低,但对于烷基醛观察到中等至高的活性。