Pyrazolylbenzo[ d ]imidazoles as new potent and selective inhibitors of carbonic anhydrase isoforms hCA IX and XII
作者:Satish Kumar、Mariangela Ceruso、Tiziano Tuccinardi、Claudiu T. Supuran、Pawan K. Sharma
DOI:10.1016/j.bmc.2016.04.061
日期:2016.7
were designed, synthesized and evaluated against four humancarbonicanhydrase isoforms belonging to α family comprising of two cytosolic isoforms hCA I and II as well as two transmembrane tumor associated isoforms hCA IX and XII. Starting from these derivatives that showed high potency but low selectivity in favor of tumor associated isoforms hCA IX and XII, we investigated the impact of removing the
A series of new N-substituted pyrazole-containing benzimidazoles was synthesized starting from 1,2-diaminobenzene and pyrazole-4-carbaldehyde in good yield. Antioxidant activity of all title compounds was assessed using 2,2-diphenyl-1-picrylhydrazyl and hydrogen peroxide assays. Some of the synthesized compounds having benzyl substituent at the imidazole nitrogen exhibited good activity in both assays
Cu(II) and Ni(II) Complexes of Novel Three 2-{1′-Phenyl-3′-(4<sup>″</sup>-Halophenyl)-1<i>H</i>-Pyrazole-4-yl}-1<i>H</i>-Benzimidazoles: Synthesis and Structural Depiction
作者:Minaxi S. Maru、Manish K. Shah
DOI:10.1080/15533174.2013.797437
日期:2014.7.3
Novel three 2-1 '-Phenyl-3 '-(4('')-halophenyl)-1H-pyrazole-4-yl}-1H-benzimidazoles (HBa-c) synthesized by the condensation of o-phenylenediamine and substituted-1H-pyrazole aldehydes in the presence of H2O2 through Ceric ammonium nitrate in catalytic amount and the nonchelated monodentate benzimidazoles complexes of 2-1 '-Phenyl-3 '-(4('')-halophenyl)-1H-pyrazole-4-yl}-1H-benzimidazoles were synthesized with a choice of metal salts in 2:1 mole ratio of ligand and metal salts, respectively, in ethanolic solution. The confirmed structures and characteristics of complexes were in good agreement with various physicochemical studies. The monodentate behavior of the ligands was proposed on the basis of spectral studies. The newly synthesized complexes possess octahedral and tetrahedral, square pyramidal and square planar geometry.