SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL ACTIVITY OF COPPER(II), NICKEL(II), COBALT(III) AND IRON(III) COORDINATION COMPOUNDS WITH 2-HYDROXY-3-METHOXYBENZALDEHYDE N(4)-ALLYL-S-METHYLISOTHIOSEMICARBAZONE

Irina USATAIA, Vasilii GRAUR, Victor TSAPKOV, Aurelian GULEA

Abstract


The paper presents the synthesis of the 2-hydroxy-3-methoxybenzaldehyde N(4)-allyl-S-methylisothiosemicarba­zone (HL) and seven coordination compounds of copper, nickel, cobalt and iron with this ligand. The new obtained compounds were studied using IR, 1H and 13C NMR spectroscopy, elemental analysis, molar electric conductibility and magnetic susceptibility. The in vitro antiproliferative activity of the HL and synthesized coordination compounds was screened on HeLa cancer cells and normal MDCK cells. The isothiosemicarbazone HL shows better anticancer activity towards HeLa cancer cells than doxorubicin that is used in medical practice and it also practically does not affect the growth and proliferation of normal cells. Moreover, it manifests high antioxidant activity towards ABTS•+ radical cation that exceeds the activity of trolox.


Keywords


coordination compounds, 2-hydroxy-3-methoxybenzaldehyde, isothiosemicarbazone, antitumor activity, cancer cells, antioxidant activity

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References


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