N/C-4 substituted azetidin-2-ones: Synthesis and preliminary evaluation as new class of antimicrobial agents
摘要:
A series of 3-chloro-4-(3-methoxy-4-acetyloxyphenyl)-1-[3-oxo-3-(phenylamino)propanamido] azetidin-2-ones 3a-g and 3-chloro-4-[2-hydroxy-5-(nitro substituted phenylazo)phenyll-1-phenylazetidin-2-ones 6a-h were synthesized using appropriate synthetic route. Structures of all the synthesized compounds were established on the basis of elemental analysis and spectroscopic data. The antimicrobial activity of the synthesized compounds was screened against several microbes. Several of these molecules showed potent antimicrobial activity against Bacillus anthracis, Staphyococcus aureus and Candida albicans and significant structure-activity relationship (SAR) trends. (c) 2006 Elsevier Ltd. All rights reserved.
Efficient synthesis and anti-bovine viral diarrhea virus evaluation of 5-(aryldiazo)salicylaldehyde thiosemicarbazone derivatives
作者:Samir Y. Abbas、Wahid M. Basyouni、Khairy A. M. El-Bayouki、Reham M. Dawood、Tawfeek H. Abdelhafez、Mostafa K. Elawady
DOI:10.1080/00397911.2019.1626893
日期:2019.9.17
Abstract An efficient procedure for the synthesis of 5-(aryldiazo)salicylaldehyde thiosemicarbazone derivatives 1-25 was achieved via the condensation of 5-(aryldiazo)salicylaldehydederivatives I–V with N-(4)-substituted thiosemicarbazide derivatives. Antiviral activity of the synthesized compounds was carried out. From the obtained results, it was noticed that compound 11 has a strong antiviral activity
monoiminated 1,2,4-triazole-based azo-azomethine dyes have been synthesized via condensation reaction of 4-amino-3-methyl-5-mercapto-1,2,4-triazole with various substituted azo-coupled salicylaldehyde. The dyes have been characterized by using FT-IR, UV-Vis and (1)H NMR spectroscopic methods as well as elemental analysis. The electrochemical behavior of the dyes has been investigated by cyclic voltammetry
We have described a simple, convenient, and high‐yielding one‐pot synthesis of novel azo chromene derivatives via a three‐component reaction of various azo aldehydes with dimedone and malononitrile using 10 mol% of 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) as catalyst and ethanol as solvent at reflux condition. All the synthesized compounds have been characterized using Fourier‐transform infrared spectroscopy
我们已经描述了使用10 mol%的1,8-二氮杂双环[3.4.0]通过各种偶氮醛与二甲酮和丙二腈的三组分反应,简单,方便且高收率的新型偶氮苯二烯衍生物的一锅法合成[5.4.0]在回流条件下,十一碳烯(DBU)作为催化剂,乙醇作为溶剂。所有合成的化合物均使用傅里叶变换红外光谱(FT-IR),1 H NMR,13 C NMR和HR-MS光谱进行了表征,并进行了分子对接以探索人类胎盘芳香化酶细胞色素P450和环氧合酶的新型抑制剂。 2种酶。在所有对接的化合物中,化合物(E)-2-氨基-4-(4,4-二甲基-2,6-二氧代环己基)-6-((3-甲氧基苯基)二氮烯基4 H-色烯-3-腈(4度)与抑制因子(Ki)为1.66 nM的人胎盘芳香化酶细胞色素P450酶(PDB:3EQM)的活性位点具有良好的结合亲和力,化合物4o也与环氧合酶2酶的活性位点(PDB:6COX)具有良好的结合力抑制常数(Ki)为367
Facile and Mild Synthesis and Characterization of Some New Diazo Dyes on the Basis of Schiff Bases in the Presence of Nanocrystalline Magnesium Oxide as a Base Catalyst under Solvent-free Conditions
作者:Hossein Naeimi、Zahra Rashid、Khadijeh Rabiei
DOI:10.1002/jccs.201500264
日期:2015.11
In this research, somenewdiazodyes including Schiffbase have been synthesized by the condensation reaction between ethylenediamine and derivatives of salicylaldehyde containing diazo functional groups in the presence of nanocrystallinemagnesiumoxide as a solid basecatalystunder solvent‐free conditions. Nanocrystallinemagnesiumoxide has been characterized by XRD, BJH and TEM techniques. The
Novel synthesized azo-benzylidene-thiourea as dual naked-eye chemosensor for selective detection of Hg2+ and CN¯ ions
作者:Hamide Hosseinjani-Pirdehi、Nosrat O. Mahmoodi、Meysam Pasandideh Nadamani、Amir Taheri
DOI:10.1016/j.jphotochem.2020.112365
日期:2020.3
Seven novel chemosensors contain azo chromophore and phenylthiourea, were synthesized and applied as colorimetric probes in aqueous solutions of dimethyl sulfoxide. The anion recognition studies exhibited that the synthesized azo dye derivatives act as a highly dual-sensitive and selective chromogenic sensor for naked-eye detection of Hg2+ and CN¯ ions, with a different color change from yellow to
合成了七个包含偶氮发色团和苯硫脲的新型化学传感器,并将其用作比色探针在二甲基亚砜水溶液中的比色探针。所表现出的阴离子识别的研究,所合成的偶氮色素衍生物充当用于裸眼检测Hg的高度双灵敏的和选择性的显色传感器2+和CN ¯离子,具有从黄色到无色和黄色到红色不同的颜色变化,分别。检测(LOD)的限制,发现为图3c朝向汞2+和CN ¯离子分别为4.89μM和2.23μM。乔布图的结果表明化合物3c与Hg 2+的化学计量结合比为1:1和CN ¯为1:2。这些结果通过1 H NMR滴定实验证实。