Abstract:
In the present communication sixteen derivatives of 2, 4-diamino-6-substitutedaminosulfonylquinazolines were synthesized as potential antimalarial agents.Screening tests for therapeutic effect on mice infected with
Plasmodium berghei and for prophylactic effect on mice infected with
P. yoelii sporozoites,.showed that 2,4-diamino-6-(piperidyl-1) sulfonyl quinazoline acetate (Ⅲ) at daily oral dose of 0.31 mg/kg for 3 consecutive days possess pronounced causal prophylactic activity against P. yoelii.