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  • Title: Synthesis, antimalarial activity and inhibition of haem detoxification of novel bisquinolines.
    Author: Ayad F, Tilley L, Deady LW.
    Journal: Bioorg Med Chem Lett; 2001 Aug 20; 11(16):2075-7. PubMed ID: 11514142.
    Abstract:
    The synthesis of novel bisquinoline compounds comprising 4-(4-diethylamino-1-methylbutyl)aminoquinoline units joined through the 2-position by a (CH(2))(n) linker is described. Their ability to inhibit the growth of both chloroquine-sensitive (D10) and chloroquine-resistant (K1) strains of Plasmodium falciparum, the hydrogen peroxide-mediated pathway for decomposition of haem, and the conversion of haem to beta-haematin have been measured. The activity was affected by the length of the linker and the most active (6c, n=12) showed effects similar to chloroquine in three of the assays. However, it was even more active against the resistant strain [IC(50), 17 nM (K1); 43 nM (D10)], much superior to chloroquine (IC(50), 540 nM) and slightly better than mefloquine (IC(50), 30 nM) in this regard.
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