Procedure to prepare 1-methyl-2- (4'-carboxamido-phenyl) -5-nitroimidazole, which consists of treating 2- (4'-carboxaraido-phenyl) -4-nitroimidazole with a levialkyl sulfate or a sulfonate of levyalkyl in a reaction medium of pH less than 8. (Machine-translation by Google Translate, not legally binding)
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