申请人:McNeilab, Inc.
公开号:US04294760A1
公开(公告)日:1981-10-13
5-(Arylcyanohydroxymethyl)-1-loweralkylpyrrole-2-acetic acid derivatives are prepared by the protic acid catalyzed reaction of aroylcyanides with 1-loweralkylpyrrole-2-acetic acid derivatives, which is then converted by treatment with alkali metal hydroxides or heat to form 5-aroyl-1-loweralkylpyrrole-2-acetic acid or derivatives thereof.
通过芳基氰基羟甲基-1-低烷基吡咯-2-乙酸衍生物与1-低烷基吡咯-2-乙酸衍生物在质子酸催化下反应制备5-(芳基氰基羟甲基)-1-低烷基吡咯-2-乙酸衍生物,然后通过与碱金属氢氧化物或加热处理转化为5-芳基-1-低烷基吡咯-2-乙酸或其衍生物。