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N-Oxides as Hypoxia Selective Cytotoxins

[ Vol. 1 , Issue. 3 ]


Hugo Cerecetto and Mercedes Gonzalez   Pages 219 - 231 ( 13 )


N-Oxide-containing compounds have been developed as prodrugs that are selectively bioactivated in the hypoxic cells in tumors. This selectivity is based on the net reduction of the N-oxide moiety in the absence of oxygen, in a one or two-electron process, by reductive enzymes. A wide range of N-oxides have been studied and some of them are currently in clinical use. This review covers the principal families of compounds under study and in clinical trials.


N-Oxides, Hypoxia, Cytotoxins, Tumor Hypoxia, Bioreductive Agents, Imidazopyridopyrazine N-Oxide and Imidazoquin-oxaline N-Oxide, Quinoxaline N,N-Dioxide, Aminoalkylaminoanthraquinone N-Oxide, Aminoalkylaminoacridine N-Oxide


Departamento de Quimica Organica. Facultad de Quimica y Facultad de Ciencias, Universidad de la Republica. Avda. Gral. Flores 2124 CC 1157. 11800 Montevideo Uruguay

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