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Zinc(II)-5,10,15,20-tetrakis(¦Á-pyridino-m-tolyl)porphyrin Tetrabromide .
Cationic porphyrins interact strongly with guanine quadruplex(G-quadruplex) DNA.We report the preparation of the zinc(II)complex of a porphyrin bearing cationic side arms,zinc(II)-5,10,15,20-tetrakis(¦Á-pyridino-m-tolyl)porphyrin tetrabromide (ZnmPy),as a novel probe for the analysis of G-quadruplex/porphyrin interaction.
rin interaction.

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