Phosphorylation of pyridoxal azomethines. Synthesis of phosphorus containing azomethines and furopyridines
作者:Michael A. Pudovik、Lyudmila Kibardina、Alexey Trifonov、Alexey Dobrynin、Sergei Katsyuba、Alexander Burilov
DOI:10.1080/10426507.2018.1513516
日期:2019.2.1
O-phosphorylated pyridoxal derivatives have been synthesized through the reaction of azomethines with РV acid chlorides. 2-Chloro-2-thioxo-5,5-dimethyl-1,3,2-dioxaphosphinanes and diethylchlorothiophosphate have been employed as phosphorylating agents. Regardless of the nature of the phosphorylating agent, the reaction is regioselective at phenolic hydroxyl group. The structure of final products is determined
作者:L. K. Kibardina、A. V. Trifonov、E. M. Pudovik、A. R. Burilov、M. A. Pudovik
DOI:10.1134/s1070363215020309
日期:2015.2
Synthesis of aminofuropyridines via the reaction of aminosilanes with pyridoxal
作者:L. K. Kibardina、L. V. Chumakov、A. V. Trifonov、E. M. Pudovik、A. R. Burilov、M. A. Pudovik
DOI:10.1134/s1070363214060322
日期:2014.6
Pyridoxal derivatized copper(II) complexes: Evaluation of antioxidant, catecholase, and DNA cleavage activity
作者:Mateus Brum Pereira、Liniquer Andre Fontana、Josiéli Demetrio Siqueira、Bruna L. Auras、Marcos P. da Silva、Ademir Neves、Philipe Gabriel、Hernán Terenzi、Bernardo Almeida Iglesias、Davi Fernando Back
DOI:10.1016/j.ica.2017.09.063
日期:2018.1
This manuscript describes the synthesis, characterization and structural analysis of copper(II) complexes with pyridoxal-type bidentate ligands, obtained from the condensation between pyridoxal and ortho-halogenated substituted anilines (C1-C5). The complexes C1, C2 and C5 were measured by X-ray single crystal analysis which showed classic and trifurcated hydrogen bonds and interaction as a sigma-hole between the oxygen atoms of the iodine ligand derivative in the complex C5. All compounds were tested as mimetics of superoxide dismutase (SOD), through NBT photoreduction method in aqueous solution of pH 7.8, but the complex C5 showed an expressive IC50 of 0.4 mu M.In addition, catecholase-like activity of C1-C5 in the presence of the substrate 3,5-di-tert-butylcatechol and cleavage of plasmid DNA were also evaluated. Again, the best results were associated with the complex C5 containing iodine in the ortho position. (C) 2017 Elsevier B.V. All rights reserved.