Malaria remains one of the most serious world health problem and the major cause of mortality and morbidity in the endemic regions. Brazil is among the 30 high-burden countries and most of the cases occur in the Legal Amazonian Region. New chemotherapeutical agents are needed for the treatment of malaria. Many plant species are used in traditional medicines of malarious countries and a relative...

background: malaria remains the world’s most devastating human parasitic infection. our goal was to assess the capacity of increasing concentrations of five antimalarial drugs (fansidartm, halfantm, quinine, coartemtm and chloroquine phosphate) to elicit the generation of methemoglobin in three human erythrocyte genotypes (hb aa, hb as and hb ss). materials and methods: spectrophotometric metho...

Trioxaquines, potential antimalarial agents, and heme-artemisinin adducts, resulting from the alkylation of heme by artemisinin, were evaluated as inhibitors of beta-hematin formation in 10 M acetate medium at pH 5.

A novel series of dihydropyrimidines (DHPMs) 4a-j; 2-oxopyran-3-carboxylate 7a,b; 1-amino-1,2-dihydropyridine-3-carboxylate 8; and 1,3,4-oxadiazole derivatives 12 with quinolinyl residues have been synthesized in fairly good yields. The structure of the newly synthesized compounds was elucidated on the basis of analytical and spectral analyses. In vitro antimalarial evaluation of the synthesize...

Metal complexes play an essential role in pharmaceutical sciences for their multiple and important activities. Schiff bases are versatile pharmacophores able to form chelating with several metals different oxidation states. Complexes widely described the literature actions numerous advantages, such as low cost easy synthesis. They show biological activities, including antimicrobial, antioxidant...

OBJECTIVE Malaria is an infectious disease commonplace in tropical countries. For many years, major antimalarial drugs consisted of natural products, but since 1930s these drugs have been largely replaced with a series of synthetic drugs. This article tries to briefly indicate that some plants which previously were used to treat malaria, as a result of deficiencies of synthetic drugs, have revi...

The diarylurea is a scaffold of great importance in medicinal chemistry as it present numerous heterocyclic compounds with antithrombotic, antimalarial, antibacterial, and anti-inflammatory properties. Some diarylureas, serine-threonine kinase or tyrosine inhibitors, were recently reported literature. first to come into the market an anticancer agent was sorafenib, followed by some others. In t...

The use of the antimalarial agent amodiaquine has been curtailed due to drug-induced idiosyncratic reactions. These have been attributed to the formation of a protein-reactive quinoneimine species via oxidation of the 4-aminophenol group. Therefore, the effects of chemical modifications on the disposition of amodiaquine in relation to its metabolism, distribution, and pharmacological activity h...