The invention relates to methods for producing sulfonamides of formula I, wherein the variables have the designations cited in the description, by reacting m-nitro-benzoic acid chlorides of formula II with aminosulfons of formula III, under the influence of B equivalents of base IV. Said method is characterised in that, during step a) the aminosulfon of formula III is reacted with B1 equivalents of base IV, and during step b), the reaction mixture resulting from step a) is reacted with m-nitro-benzoic acid chlorides of formula II and B2 equivalents of base IV; B, B1 and B2 having the designations cited in the description.
该发明涉及一种制备式I
磺胺的方法,其中变量具有描述中引用的标记,通过将式II的m-硝基
苯甲酸氯化物与式III的
氨基磺酸在基IV的B当量的影响下反应。该方法的特点在于,在步骤a)期间,将式III的
氨基磺酸与基IV的B1当量反应,而在步骤b)期间,将步骤a)产生的反应混合物与式II的m-硝基
苯甲酸氯化物和基IV的B2当量反应;其中B、B1和B2具有描述中引用的标记。