Functional Superoxide Dismutase Mimics. Structural Characterization and Magnetic Exchange Interactions of Copper(II)−N-Substituted Sulfonamide Dimer Complexes
Dinuclearcopper(II) complexes with N-substituted sulfonamide ligands as superoxide dismutase (SOD) mimics have been investigated. The new N-(thiazol-2-yl)toluenesulfonamide (Htz-tol) and N-(thiazol-2-yl)naphthalenesulfonamide (Htz-naf) ligands have been prepared and structurally characterized. The complexes derived from these ligands, [Cu(2)(tz-tol)(4)] (1) and [Cu(2)(tz-naf)(4)] (2), have been synthesized
Three-Component Ring-Opening Reactions of Cyclic Ethers, α-Diazo Esters, and Weak Nucleophiles under Metal-Free Conditions
作者:Lin Lu、Chuwei Chen、Huanfeng Jiang、Biaolin Yin
DOI:10.1021/acs.joc.8b02091
日期:2018.12.7
A protocol for three-component reactions of cyclic ethers, α-diazo esters, and weak nitrogen, oxygen, carbon, and sulfur nucleophiles (pKa = 2.2–14.8) to afford a variety of structurally complex α-oxyalkylated esters is reported. These reactions involve intermolecular activation of the cyclic ether (present in excess) by the α-diazo ester to form an oxonium ylide under metal-free conditions, followed
据报道,存在一种用于环醚,α-重氮酯与弱氮,氧,碳和硫亲核试剂(p K a = 2.2–14.8)的三组分反应的协议,该反应可提供多种结构复杂的α-氧基烷基化酯。这些反应包括在无金属条件下,α-重氮酯对环状醚(过量存在)进行分子间活化,形成叶立德叶立酮,然后由亲核试剂开环。
SODIUM CHANNEL INHIBITORS
申请人:Fulp Alan Bradley
公开号:US20090023740A1
公开(公告)日:2009-01-22
Compounds, compositions and methods are provided which are useful in the treatment of diseases through the inhibition of sodium ion flux through voltage-gated sodium channels. More particularly, the invention provides substituted sulfonamides, compositions comprising these compounds, as well as methods of using these compounds or compositions in the treatment of central or peripheral nervous system disorders, particularly pain and chronic pain by blocking sodium channels associated with the onset or recurrence of the indicated conditions. The compounds, compositions and methods of the present invention are of particular use for treating neuropathic or inflammatory pain by the inhibition of ion flux through a voltage-gated sodium channel.
Molecular modeling, synthesis, antibacterial and cytotoxicity evaluation of sulfonamide derivatives of benzimidazole, indazole, benzothiazole and thiazole
作者:Farha Naaz、Ritika Srivastava、Anuradha Singh、Nidhi Singh、Rajesh Verma、Vishal K. Singh、Ramendra K. Singh
DOI:10.1016/j.bmc.2018.05.015
日期:2018.7
A new series of heterocyclic molecules bearing sulfonamide linkage has been synthesized and screened for antibacterial activity. During antibacterial screening using broath dilution method, molecules were found to be highly active (MIC value 50–3.1 µg/mL) against different human pathogens, namely B. cerus, S. aureus, E. coli and P. aeruginosa, and most effective against E. coli. A great synergistic
Synthesis and Structure of the Dimeric Copper(II) Complex Tetrakis[N-thiazol-2-yl-(4-methylphenyl)sulfonamidate]dicopper(II)
作者:Santiago Cabaleiro、Rafael Calvo、Jesús Castro、J. Arturo García-Vázquez、Lia M. B. Napolitano、Otaciro R. Nascimento、Paulo Pérez-Lourido、Jaime Romero、Antonio Sousa
DOI:10.1007/s10870-007-9303-9
日期:2008.1
The coordination chemistry of the ligand N-thiazol-2-yl-toluenesulfonamidate towards the copper(II) ion has been investigated using an electrochemical synthesis method. The X-ray structure of this complex was elucidated and is discussed. The compound crystallised in the monoclinic crystal system, P21/c space group with a = 17.3888(9), b = 16.3003(9), c = 18.3679(9) Å and β = 114.3640(10)°. Four bidentate sulfathiazolato anions bridge two metal centers in a paddle-wheel fashion, with the nitrogen atoms as donors to give a dimeric species with a Cu···Cu distance of 2.7859(5) Å. The coordination chemistry of the ligand N-thiazol-2-yl-toluenesulfonamidate towards the copper(II) ion has been investigated using an electrochemical synthesis method. The X-ray structure of the product has been elucidated and is discussed. Sulfathiazolato anions act as bridging ligands to give a dimeric species with a Cu···Cu distance of 2.7859(5) Å.
使用电化学合成方法研究了配体 N-噻唑-2-基-甲苯磺酰胺与铜 (II) 离子的配位化学。阐明并讨论了该配合物的 X 射线结构。该化合物结晶为单斜晶系,P21/c空间群,a = 17.3888(9),b = 16.3003(9),c = 18.3679(9) Å,β = 114.3640(10)°。四个双齿磺胺噻唑阴离子以桨轮方式桥接两个金属中心,以氮原子作为供体,形成 Cu·Cu 距离为 2.7859(5) Å 的二聚体。使用电化学合成方法研究了配体 N-噻唑-2-基-甲苯磺酰胺与铜 (II) 离子的配位化学。该产品的X射线结构已被阐明并进行了讨论。磺胺噻唑阴离子作为桥联配体,产生 Cu·Cu 距离为 2.7859(5) Å 的二聚体。