Organoruthenium (II) complexes featuring pyrazole‐linked thiosemicarbazone ligands: Synthesis, DNA/BSA interactions, molecular docking, and cytotoxicity studies
作者:Priyanka Khanvilkar、Soumya R. Dash、Devjani Banerjee、Aliasgar Vohra、Ranjitsinh Devkar、Debjani Chakraborty
DOI:10.1002/aoc.6343
日期:2021.10
thiosemicarbazone ligands (L1–L4) were synthesized and reacted with [Ru(p-cymene)(μ-Cl)Cl]2 to yield a series of “piano-stool”-type binuclear ruthenium (II)–arene-thiosemicarbazone complexes (C1–C8) of the general type [(Ru(η6-p-cym)L)2(μ-im/azpy)] Cl1–2 (L = diphenylpyrazole thiosemicarbazone; cym = p-cymene; im = imidazole; azpy = 4,4′-azopyridine). The thiosemicarbazone ligands act as N and S donors
合成了一系列吡唑衍生的缩氨基硫脲配体(L1 - L4)并与[Ru( p -cymene)(μ-Cl)Cl] 2反应生成了一系列“钢琴凳”型双核钌(II) -芳烃-氨基硫脲复合物 ( C1 – C8 ) 的一般类型 [(Ru(η 6 - p -cym)L) 2 (μ-im/azpy)] Cl 1–2(L = 二苯基吡唑缩氨基硫脲;cym = 对伞花烃;im = 咪唑;azpy = 4,4'-偶氮吡啶)。氨基硫脲配体作为 N 和 S 供体通过亚胺氮和硫酮硫原子与 Ru(II) 中心结合。通过NMR、FTIR、UV-Vis光谱和ESI +质谱对配合物进行表征。评估了复合物与小牛胸腺脱氧核糖核酸 (CT-DNA) 和牛血清白蛋白 (BSA) 的结合,确定双核复合物对 DNA 具有良好的结合作用 (K b = 10 4 –10 5 M −1 ) 和 BSA (K a = 10 5 –10 6 M
Novel Bioactive Thio- and Semicarbazide Ligands and Their Organosilicon (IV) Complexes
作者:Rajesh Malhotra
DOI:10.1080/10426500903348021
日期:2010.8.25
Ligationalbehavior of thiosemicarbazones and semicarbazones derived from 1-phenyl-3-arylpyrazole-4-carboxaldehydes towards triphenylchlorosilane has been investigated by elemental analysis, molar conductivity measurements, and IR, 1H, 13C, and 29Si NMR spectroscopic studies. The ligands and their organosilicon complexes have also been evaluated for in vitro antimicrobial activity against some pathogenic
1,3,4-Trisubstituted pyrazole bearing a 4-(chromen-2-one) thiazole: synthesis, characterization and its biological studies
作者:N. Harikrishna、Arun M. Isloor、K. Ananda、Abdulrahman Obaid、Hoong-Kun Fun
DOI:10.1039/c5ra04995d
日期:——
3-2-[N′-(1,3-Disubstituted-1H-pyrazol-4-yl-methylene)-hydrazino]-thiazol-4-yl}-chromen-2-one compounds (10a–l) were synthesized, characterized and screened for theirin vitroantimicrobial studies against various microorganisms. Most compounds were biologically active.
One-Pot Synthesis of Some New Semicarbazone, Thiosemicarbazone, and Hydrazone Derivatives of 1-Phenyl-3-Arylpyrazole-4-Carboxaldehyde from Acetophenone Phenylhydrazones Using Vilsmeier–Haack Reagent
Abstract Semicarbazone derivatives 3 of 1,3-diphenylpyrazole-4-carboxaldehyde have been synthesized in high yields through a one-pot procedure involving acetophenone phenylhydrazones 1 subjected to Vilsmeier double formylation and workup under new conditions (i.e., treatment with semicarbazide followed by sodium bicarbonate). This method is even suitable for preparing other derivatives (i.e., thiosemicarbazones
Design, synthesis and molecular docking of new pyrazole-thiazolidinones as potent anti-inflammatory and analgesic agents with TNF-α inhibitory activity
作者:Somaia S. Abd El-Karim、Hanaa S. Mohamed、Mohamed F. Abdelhameed、Abd El-Galil E. Amr、Abdulrahman A. Almehizia、Eman S. Nossier
DOI:10.1016/j.bioorg.2021.104827
日期:2021.6
appeared to be the most promising candidates producing rapid onset and long duration of anti-inflammatory activity as well as promising GIT safety profile. Furthermore, analgesic evaluation revealed that the compounds 5, 10, 15 and 22 produced potent and long acting analgesia accompanied with significant inhibition of the inflammatory cytokine TNF-α level in comparison with the standard drugs. Molecular