Dispiro-1,2,4,5-tetraoxanes: a new class of antimalarial peroxides

Autor: Arba L. Ager, James K. Wood, Hong Ning Fu, Jonathan L. Vennerstrom, William Y. Ellis, Wilbur K. Milhous, Lucia Gerena, Steven L. Andersen
Rok vydání: 1992
Předmět:
Zdroj: Journal of Medicinal Chemistry. 35:3023-3027
ISSN: 1520-4804
0022-2623
DOI: 10.1021/jm00094a015
Popis: Dispiro-1,2,4,5-tetraoxanes 2-4 were synthesized as potential peroxide antimalarial drugs. They had curative activity against Plasmodium berghei in vivo at single doses of 320 and 640 mg/kg which confirms earlier unpublished data. Moreover, artemisinin (1) and 4 had equivalent ED50's against P. berghei in vivo in the multiple-dose Thompson test; neither showed any evidence of acute toxicity at total doses of more than 12 g/kg. Dispiro-1,2,4,5-tetraoxane 4 had IC50's comparable to those of 1 against Plasmodium falciparum clones in vitro. These results confirm the potential of dispiro-1,2,4,5-tetraoxanes as a new class of inexpensive peroxide antimalarial drugs.
Databáze: OpenAIRE