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Molecules. 2013 Jan 29;18(2):1762-74. doi: 10.3390/molecules18021762.

Antioxidant capacity of two novel bioactive Fe(III)-cyclophane complexes.

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  • 1Departamento de Investigación en Polímeros y Materiales-DIPM, Universidad de Sonora, Calle Rosales y Blvd, Luis Encinas s/n, Col. Centro, PO Box 130, Hermosillo Sonora 83000, Mexico.


The cyclophanes 2,9,25,32-tetraoxo-4,7,27,30-tetrakis(carboxymethyl)-1,4,7,10, 24,27,30,33-octaaza-17,40-dioxa[]paracyclophane (PO) and 2,9,25,32-tetraoxo-4,7,27,30-tetrakis(carboxymethyl)-1,4,7,10,24,27,30,33-octaaza[]paracyclophane (PC) were coordinated with iron to form cationic binuclear Fe(III) Fe₂PO and Fe₂PC complexes, respectively. Their antioxidant capacity, superoxide dismutase and peroxidase mimetic activity, as well as their toxicity toward peripheral blood mononuclear cells (PBMCs) were evaluated. Both Fe₂PO and Fe₂PC are interesting biomimetics with antioxidant capacity similar to that of ascorbic acid that prevent mortality in cultured PBMCs, with the potential to have bioactive and protective functions in disease animal models.

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