Abstract
AbstractA series of compounds of general formula [Ru(η6‐p‐cymene)(R2acac)(PTA)][X] (R2acac = Me2acac, tBu2acac, Ph2acac, Me2acac‐Cl; PTA = 1,3,5‐triaza‐7‐phosphaadamantane; X = BPh4, BF4), and the precursor to the Me2acac‐Cl derivative [Ru(η6‐p‐cymene)(Me2acac‐Cl)Cl], have been prepared and characterised spectroscopically. Five of the compounds have also been characterised in the solid state by X‐ray crystallography. The tetrafluoroborate salts are water‐soluble, quite resistant to hydrolysis, and have been evaluated for cytotoxicity against A549 lung carcinoma and A2780 human ovarian cancer cells. The compounds are cytotoxic towards the latter cell line, and relative activities are discussed in terms of hydrolysis (less important) and lipophilicity, which appears to exert the dominating influence. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
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