98006-58-7Relevant academic research and scientific papers
Novel communication: Some novel organosulfur amino acid derivatives as potential antiparasitic agents
El-Sayed, Ragab A.
, p. 1143 - 1151 (2007)
The chalones 1, 14, and 26 reacted with chlorosulfonic acid to give corresponding sulfonyl chlorides 2, 15, and 27, which condensed with nucleophiles to give amino acid derivatives 3-6, 16-18, and 28-31. Some of the corresponding methyl esters 7, 8, 19-20
Synthesis, biological evaluation and SAR of sulfonamide 4-methoxychalcone derivatives with potential antileishmanial activity
Andrighetti-Froehner, Carla R.,de Oliveira, Kely N.,Gaspar-Silva, Daniela,Pacheco, Leticia K.,Joussef, Antonio C.,Steindel, Mario,Simoes, Claudia M.O.,de Souza, Alessandra M.T.,Magalhaes, Uiaran O.,Afonso, Ilidio F.,Rodrigues, Carlos R.,Nunes, Ricardo J.,Castro, Helena C.
scheme or table, p. 755 - 763 (2009/09/27)
Despite clinical importance of leishmaniasis, an infectious disease that affects 12 thousand million people in 88 countries, the treatment is still unsatisfactory due to its limited efficacy, cost expensive and undesirable side effects. Aiming to develop new antileishmanial lead compounds, we used a rational approach to synthesize a new set of sulfonamide 4-methoxychalcone derivatives (3a-3i) and evaluate the sulfonamide and methoxy moieties as promising adding-groups to chalcones. For that purpose we tested this new set against Leishmania braziliensis promastigotes and intracellular amastigotes and determined its cell toxicity profile. Interestingly all compounds presented a concentration-dependent antileishmanial profile and the benzylamino derivative (3i) showed a biological activity better than pentamidine. None of these compounds affected Trypanosoma cruzi epimastigotes, which suggests a specific antileishmanial profile. The structure-activity analysis of these sulfonamide 4-methoxychalcone derivatives pointed the molecular volume, the HOMO density concentrated in the chalcone moiety and the conformational structure of the compounds as important structural and stereoelectronic features for the antileishmanial activity. In addition, these compounds also fulfilled Lipinski rule of 5 and presented druglikeness similar to antileishmanial drugs. Altogether these results point the sulfonamide 4-methoxychalcone derivatives as potential lead compounds for designing new candidates for leishmaniasis treatment.
