Synthesis of 2,4-disubstituted 6-methoxy-8-aminoquinoline analogs as potential antiparasitics

Abstract
A series of 2,4-disubstitued 8-aminoquinoline analogs were synthesized and evaluated against Plasmodium berghei in mice and Leishmania donovani in hamsters. 8-[[6-(Diethylamino)hexyl]amino]-2-ethyl-6-methoxy-4-methylquinoline (8a) possessed significant activity against L. donovani. 2-Ethyl-4-methylprimaquine (7a) was evaluated against P. cynomolgi in rhesus monkey and had activity equal to that of primaquine.

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