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Tuning Reactivity of Platinum(II) Complexes

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List <strong>of</strong> Figures<br />

Figure 1.1 Classification <strong>of</strong> chemotherapy drugs ……………………………..………...2<br />

Figure 1.2 Chemical structures <strong>of</strong> selected platinum compounds ……………….4<br />

Figure 1.3 Intracellular hydrolysis and bio-activation <strong>of</strong> cisplatin in aqueous<br />

solution leading to binding at DNA in the cell nucleus.<br />

……………………………………………………………..……………..……………..……6<br />

Figure 1.4 DNA-adduct formation with cisplatin leaving two amino groups<br />

coordinated on the platinum atom. The main adducts formed in<br />

the interaction cisplatin with DNA: (a) interstrand cross-link; (b)<br />

1,2-intrastrand cross-link; (c) 1,3-intrastrand cross-link and; (d)<br />

protein-DNA cross-link. ………………………………………………….………...7<br />

Figure 1.5 Schematic pathway <strong>of</strong> a platinum drug in cells showing how<br />

sulphur containing compounds are thought to act as potential<br />

drug reserving agents in platinum chemotherapy ….………………….9<br />

Figure 1.6 DNA adducts formed by oxaliplatin. ………………………………………..11<br />

Figure 1.7 Structure <strong>of</strong> a sterically hindered platinum(<strong>II</strong>) complex (ZD0473)<br />

that circumvents cisplatin resistance. ……………………………………..12<br />

Figure 1.8 Selected Pt(<strong>II</strong>) metallo-intercalators: terpy = terpyridine, phen =<br />

phenanthroline, 4-picoline = 4-methylpyridine, en = 1,2-<br />

diaminoethane, and HET = 2-hydroxyethanethiolato ligand<br />

.……………………………………… ……………..……………..……………..………..13<br />

Figure 1.9 Selected Multinuclear platinum(<strong>II</strong>) complexes with flexible amino-<br />

and rigid azine and azoles ligands., …………………………………………15<br />

Figure 1.10 Structure <strong>of</strong> extended terpy Pt(<strong>II</strong>) complexes………..…………………18<br />

Figure 2.1 Structures <strong>of</strong> some mon<strong>of</strong>unctional platinum(<strong>II</strong>) complexes active<br />

against (HCT-116) cell line …………………………………………………….....2<br />

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