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Disulfide-bridge dimeric porphyrin and their reference compounds for glutathione-based specific tumor-activation

Alpugan, Serkan; Topkaya, Derya; Dumoulin, Fabienne


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    <subfield code="a">The tumor micro-environment is rich in glutathione. To exploit this feature for tumor-activatable porphyrin-based photosensitizers, a dimeric disulfide-bridged porphyrin has been designed and prepared, together with two reference derivatives, a non-cleavable dimer and a monomer. The three compounds have been investigated from a photochemical and photophysical point of view. It appears that the disulfide-bridged derivative exhibited intramolecular aggregation, but to an insufficient extent to induce a satisfying self-quenching of its photoproperties. Unlike expected, the non-cleavable dimer behaved like the monomeric derivative, due to the superior flexibility of the alkyl bridge over the disulfide bridge.</subfield>
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    <subfield code="u">Dokuz Eylul Univ, Fac Sci, Dept Chem, TR-35160 Izmir, Turkey</subfield>
    <subfield code="a">Topkaya, Derya</subfield>
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