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Dalton Trans. 2013 Jan 28;42(4):1267-77. doi: 10.1039/c2dt31337e.

The influence of RAPTA moieties on the antiproliferative activity of peripheral-functionalised poly(salicylaldiminato) metallodendrimers.

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  • 1Department of Chemistry, University of Cape Town, Rondebosch, 7701 Cape Town, South Africa.


Cationic N,O-chelating dendrimers functionalised on the periphery with RAPTA-like (ruthenium(II)-arene-1,3,5-triaza-7-phosphatricyclo[]decane) moieties have been synthesised and characterised using NMR and IR spectroscopy, elemental analysis and MALDI-TOF/HR-ESI mass spectrometry. Metallodendrimers from the first to the fourth-generation containing up to 32 peripheral ruthenium-arene-PTA moieties were obtained. Model mononuclear analogues, [{Ru(η(6)-p-cymene)((C(7)H(5)NO)-κ(2)-N,O)(PTA)}((CH(2))(3))][PF(6)] and [{Ru(η(6)hexamethylbenzene)((C(7)H(5)NO)-κ(2)-N,O)(PTA)}((CH(2))(3))][PF(6)], have been prepared and their structures were determined by single crystal X-ray diffraction analysis. The cytotoxicities of the metallodendrimers and their mononuclear analogues were established on A2780 and A2780cisR human ovarian carcinoma cancer cells and model human embryonic kidney (HEK) cells.

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