申请人:Sterling Drug Inc.
公开号:US04031088A1
公开(公告)日:1977-06-21
3-Amino-2,4,6-triiodobenzoic acids optionally substituted in the 5-position by amino or carboxy or a derivative thereof react with dibasic acid anhydrides to give the corresponding cyclic imides (A), which can be hydrolyzed to the corresponding anilic acids (B). The latter can be further alkylated on the anilide nitrogen atom. Compounds A and B are useful as cholecystographic and urographic agents.
3-氨基-2,4,6-三碘苯甲酸在5-位选择性地被氨基、羧基或其衍生物取代,与二元酸酐反应,形成相应的环状酰亚胺(A),可水解为相应的苯胺酸(B)。后者可在苯胺酰氮原子上进一步烷基化。化合物A和B可用作胆囊造影剂和尿路造影剂。