Synthesis, characterization, cytotoxicity and antibacterial activity of an anthracenyl-linked bis(pyrazolyl)methane ligand and its zinc(II) complexes
摘要:
Three novel Zn(II) complexes (1-3) with 1,1'-(anthracen-9-ylmethylene)bis(1H-pyrazole) (L-2) have been prepared and structurally characterized by X-ray crystallography. Among them, 1 is a binuclear Zn(II) complex while 2 and 3 are mononuclear. The in vitro cytotoxic and antibacterial activities of these complexes were also evaluated. The three complexes exhibit cytotoxic specificity and significant antitumor activity. The MIC50 value of complex 1 against Pseudomonas putida reaching 0.011 mu g/mL much lower than that the positive control chloromycin (0.182 mu g/mL), indicates that complex 1 is a potent antibacterial agent. (C) 2013 Elsevier Masson SAS. All rights reserved.
Synthesis, characterization, and antitumor activities of two copper(II) complexes with pyrazole derivatives
摘要:
Two mononuclear copper(II) complexes with pyrazole derivatives, 1,1'-(anthracen-9-ylmethylene)bis(1H-pyrazole) (L-1) and 9-(4-(di(1H-pyrazol-1-yl)methyl)phenyl)-9H-carbazole (L-2), of formulae [CuL1(CH3CN)(2)](ClO4)(2) (1) and [CuL2(CH3CN)(2)](ClO4)(2) (2) were prepared. Both complexes were confirmed by IR, MS, H-1 NMR, and elemental analyses. Complex 1 was also characterized by X-ray crystallography, confirming that copper(II) is coordinated by four nitrogen atoms from two L-1 and two oxygen atoms from two perchlorates. Furthermore, all ligands and complexes were tested in vitro for their antitumor activities using mouse melanoma cell line B16-F10, HepG2 human hepatoma cell line, and A549 human lung adenocarcinoma cell line. Both complexes displayed potent cytotoxicity and are promising substrates for further investigations.
Two mononuclear copper(II) complexes with pyrazole derivatives, 1,1'-(anthracen-9-ylmethylene)bis(1H-pyrazole) (L-1) and 9-(4-(di(1H-pyrazol-1-yl)methyl)phenyl)-9H-carbazole (L-2), of formulae [CuL1(CH3CN)(2)](ClO4)(2) (1) and [CuL2(CH3CN)(2)](ClO4)(2) (2) were prepared. Both complexes were confirmed by IR, MS, H-1 NMR, and elemental analyses. Complex 1 was also characterized by X-ray crystallography, confirming that copper(II) is coordinated by four nitrogen atoms from two L-1 and two oxygen atoms from two perchlorates. Furthermore, all ligands and complexes were tested in vitro for their antitumor activities using mouse melanoma cell line B16-F10, HepG2 human hepatoma cell line, and A549 human lung adenocarcinoma cell line. Both complexes displayed potent cytotoxicity and are promising substrates for further investigations.
Synthesis, characterization, cytotoxicity and antibacterial activity of an anthracenyl-linked bis(pyrazolyl)methane ligand and its zinc(II) complexes
Three novel Zn(II) complexes (1-3) with 1,1'-(anthracen-9-ylmethylene)bis(1H-pyrazole) (L-2) have been prepared and structurally characterized by X-ray crystallography. Among them, 1 is a binuclear Zn(II) complex while 2 and 3 are mononuclear. The in vitro cytotoxic and antibacterial activities of these complexes were also evaluated. The three complexes exhibit cytotoxic specificity and significant antitumor activity. The MIC50 value of complex 1 against Pseudomonas putida reaching 0.011 mu g/mL much lower than that the positive control chloromycin (0.182 mu g/mL), indicates that complex 1 is a potent antibacterial agent. (C) 2013 Elsevier Masson SAS. All rights reserved.