Literature DB >> 18582946

Hydrolysis study of the bifunctional antitumour compound RAPTA-C, [Ru(eta6-p-cymene)Cl2(pta)].

Claudine Scolaro1, Christian G Hartinger, Claire S Allardyce, Bernhard K Keppler, Paul J Dyson.   

Abstract

The hydrolysis of [Ru(eta(6)-p-cymene)Cl(2)(PTA)] (PTA=1,3,5-triaza-7-phosphatricyclo-[3.3.1.1]decanephosphine; RAPTA-C) was studied using UV-visible (UV-vis) spectrophotometry and NMR spectroscopy. In analogy to in silico studies, [Ru(eta(6)-p-cymene)Cl(H(2)O)(PTA)](+) was found to be the most abundant hydrolysis product, although the dihydrolysed species [Ru(eta(6)-p-cymene)(OH)(H(2)O)(PTA)](+) and the dichloro compound are present. Rate constants for the different aquation and anation steps and the equilibrium constants were determined. Hydrolysis is suppressed at high chloride concentrations. These results have important implications on the mode of action of the RAPTA drug candidates.

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Year:  2008        PMID： 18582946     DOI： 10.1016/j.jinorgbio.2008.05.004

Source DB:  PubMed          Journal:  J Inorg Biochem        ISSN： 0162-0134            Impact factor:   4.155


  11 in total

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