| |
[摘要]：Malaria is a serious infectious disease caused by protozoan parasites in tropical and subtropical regions. Even inhabitants of temperate zones are exposed to the danger of malaria infection because of travel and global warming. Novel, effective,safe, and inexpensive drugs are required to treat malaria and. . contribute to the global goal of eradication. A search for new antimalarial-agents has by the synthesis of by biological evaluations. The derivative SSJ-183(5) having a 4-aminopyridine group, showed an IC50 value against Plasmodium falciparum of 7.6 nM and a selectivity index of > 7300: Cure was acheived by three oral doses of 5 at 100 mg/kg to mice infected with the Plasmodium berghei ANKA strain. The safety of 5 was supported acute toxicity testing in mice with single doses up to 2000 mg/kg po, chromosome aberration test, in vitro as well as in vivo micronucleus tests and phototoxicity studies in mice. Thus, 5 is a promising candidate as a new antimalarial agent. |
|
