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Home / Publicações / Bis-alkylamine quindolone derivatives as new antimalarial leads

Bis-alkylamine quindolone derivatives as new antimalarial leads

  • Autores: Figueiredo P, Gani K, Gut J, Lavrado J, Lopes D, Moreira R, Nobre PA, Paulo A, Rosário VD, Rosenthal PJ, Santos SA
  • Journal: Bioorganic & Medicinal Chemistry Letters
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Bis-alkylamine+quindolone+derivatives+as+new+antimalarial+leads

Quindolone derivatives, designed to target the malaria parasite digestive vacuole and heme detoxification pathway, have been synthesized by reaction with 2-chloro-N,N-diethylethanamine. This reaction gave N,O-, N,N- and O-alkylated products containing one or two basic side-chains. The compounds were evaluated for antiplasmodial activity against the chloroquine-resistant Plasmodium falciparum W2 strain and for cytotoxicity in HepG2 A16 hepatic cells. By incorporating alkylamine side chains and chlorine atoms in the quindolone nucleus we transformed the inactive tetracyclic parent quindolones into moderate or highly active and selective antimalarial compounds. The most active and selective compound, 5c, showed an IC(50)=51 nM for P. falciparum and a selectivity ratio of 98.

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