Method for purification of cephalexin
    2.
    发明授权
    Method for purification of cephalexin 失效
    净化CEPHALEXIN的方法

    公开(公告)号:US3883519A

    公开(公告)日:1975-05-13

    申请号:US31143072

    申请日:1972-12-01

    CPC分类号: C12P35/04 Y10S435/91

    摘要: Cephalexin is purified by allowing it to precipitate as a sparingly soluble salt with a base such as a nitrogen-containing heterocyclic compound (e.g. quinoline, isoquinoline) or an aniline or naphthylamine compound (e.g. dichloroaniline, Alpha naphthylamine), separating the salt and decomposing the salt.

    摘要翻译: 头孢氨苄通过使其与碱例如含氮杂环化合物(例如喹啉,异喹啉)或苯胺或萘胺化合物(例如二氯苯胺,α-萘基胺)作为微溶盐沉淀而纯化,分离盐并分解 盐。

    Crystalline cytidine-5{40 -diphosphate choline monohydrate and production thereof
    3.
    发明授权
    Crystalline cytidine-5{40 -diphosphate choline monohydrate and production thereof 失效
    晶体蛋白-5 {40-二磷酸氢二辛酯及其生产

    公开(公告)号:US3687932A

    公开(公告)日:1972-08-29

    申请号:US3687932D

    申请日:1970-04-24

    IPC分类号: C07H19/10 C07D51/52

    CPC分类号: C07H19/10

    摘要: Crystalline cytidine-5''-diphosphate choline monohydrate is produced by A. ADDING A HYDROPHILIC ORGANIC SOLVENT TO AN AQUEOUS SOLUTION SYSTEM OF CYTIDINE-5''-DIPHOSPHATE CHOLINE IN THE PH range of from about 2 to about 4, or B. KEEPING CYTIDINE-5''-DIPHOSPHATE CHOLINE STANDING AT A RELATIVE HUMIDITY OF NOT LESS THAN ABOUT 32 PERCENT AND AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 17*C to about 70*C for not shorter than about 5 days.

    摘要翻译: 结晶胞苷-5'-二磷酸胆碱一水合物是通过A.在约2至约4的PH范围内或将B加入CYTIDINE-A溶液中,将氢化有机溶剂添加到CYDIDINE-5'-二磷酸酯醇的水溶液体系中。 5'-二磷酸酯溶液在相对湿度不超过约32%和约17℃至约70℃的温度下保持不低于约5天。