Abstract
To integrate the respective advantages exhibited by half-sandwich arene-Ru(II) fragments and 5-FU derivatives, a multifunctional ligand that links isonicotinic acid and 5-Fu (5-fluorouracil) through an ester bond for achieving the enhanced effect and an organoruthenium(II) complex containing this ligand were prepared and characterized by standard analytical techniques. The cytotoxicity of these organoruthenium(II) compounds containing 5-fluorouracil-1-methyl isonicotinate against BEL-7402 human cancer cells was moderately improved, which implies synergistic action of 5-Fu and the half-sandwich-structured arene-Ru(II). In addition, the organoruthenium(II) compounds containing isonicotinic acid and methyl isonicotinate are also discussed, and the crystal structure of [(η6-p-cymene)RuCl2(methyl isonicotinate)] (4) was determined; its piano-stool structure is analyzed in this paper.
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