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Reduction of Nitrophenanthridinium Salts: Influence of Molecular Size on Trypanocidal Activity

Abstract

IN 1948 Kenneford, Lourie, Morley, Simpson, Williamson and Wright1 reported that the crude reduction products of the cinnolinium salts (I; R = H or Me) showed considerable activity in infections of Trypanosoma congolense in mice, whereas the pure diamino-salts were inactive. They attributed this phenomenon to the probable presence in the crude products of azo-compounds (II; X = —N=N—) of high trypanocidal activity. It has recently2 been further demonstrated that structures of the general formula (II), where X may have values other than —N=N—, have trypanocidal properties, the most effective being ‘528’ (II; R = H, X = ).

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References

  1. Kenneford, J. R., Lourie, E. M., Morley, J. S., Simpson, J. C. E., Williamson, J., and Wright, P. H., Nature, 161, 603 (1948).

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  2. Lourie, E. M., Simpson, J. C. E., and Walker, J. M., Brit. J. Pharmacol., 6, 643 (1951).

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WALLS, L., BEVERIDGE, E. Reduction of Nitrophenanthridinium Salts: Influence of Molecular Size on Trypanocidal Activity. Nature 170, 666–667 (1952). https://doi.org/10.1038/170666a0

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