Methods and compositions involving polyhydroxylated polyiodo non-ionic
contrast media
    28.
    发明授权
    Methods and compositions involving polyhydroxylated polyiodo non-ionic contrast media 失效
    涉及多羟基化多碘非离子造影剂的方法和组合物

    公开(公告)号:US4584401A

    公开(公告)日:1986-04-22

    申请号:US544308

    申请日:1983-10-20

    摘要: Methods and compositions are provided for preparing polyhydroxylated polyiodo non-ionic contrast media. Particularly, substituted polyiodobenzamides are prepared, wherein the benzamide nitrogen is polyhydroxylated by allylic substitution on the nitrogen and oxidation of the olefinic group to provide for polyhydroxyl substitution. Amino substituents on the benzamide may be polyhydroxylated by allyl substitution or acryl substitution. All of the olefins may be oxidized simultaneously to glycols to provide for water soluble relatively non-toxic contrast media in efficient economical processes. Alternatively, the same compounds can be synthesized by alkylating N-acylbenzamide with polyacetoxyalkyl or dioxolanylalkyl halides, followed by removal of the protective groups.

    摘要翻译: 提供了用于制备多羟基化多碘非离子造影剂的方法和组合物。 特别地,制备了取代的聚碘苯甲酰胺,其中苯甲酰胺氮通过在氮上的烯丙取代和烯属基团的氧化进行多羟基化以提供多羟基取代。 苯甲酰胺上的氨基取代基可以通过烯丙基取代或丙烯基取代被多羟基化。 所有烯烃可以同时氧化成二醇,以在有效的经济过程中提供水溶性相对无毒的造影剂。 或者,可以通过用聚乙酰氧基烷基或二氧戊环烷基卤化物烷基化N-酰基苯甲酰胺,然后除去保护基来合成相同的化合物。