Studies on the Selective S-oxidation of Albendazole, Fenbendazole, Triclabendazole, and Other Benzimidazole Sulfides
DOI:
https://doi.org/10.29356/jmcs.v49i4.1327Keywords:
Albendazole, fenbendazole, triclabendazole, metabolites, S-oxidationAbstract
Abstract. The selective S-oxidation of albendazole, fenbendazole, and other benzimidazole sulfides with sodium periodate in acid medium,
afforded the corresponding sulfoxides or sulfones. In contrast,
triclabendazole and other 2-methylthiobenzimidazole derivatives could not be S-oxidized under the same smooth conditions with this reagent, but with MCPBA, a stronger oxidizing agent.
Resumen. La oxidación selectiva de albendazol, fenbendazol, y otros
sulfuros bencimidazólicos con peryodato de sodio en medio ácido da
los correspondientes sulfóxidos y sulfonas. En contraste, triclabendazol
y otros derivados de 2-metiltiobencimidazoles no pueden ser oxidados
bajo las mismas condiciones suaves con este reactivo, pero sí con un agente oxidante fuerte como MCPBA.
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