Diacyl penicillins and methods for their production
    1.
    发明授权
    Diacyl penicillins and methods for their production 失效
    二酰基青霉素及其生产方法

    公开(公告)号:US3935193A

    公开(公告)日:1976-01-27

    申请号:US102556

    申请日:1970-12-29

    CPC分类号: C07D499/00 Y02P20/55

    摘要: Novel diacyl penicillins of the formula ##EQU1## wherein R is alkyl, cycloalkyl, aryl, aralkyl, phenoxyalkyl, heterocyclic carboxyl excepting isoxazole carboxyl derivatives, or ##SPC1##In which benzene ring A may optionally be substituted andB represents a protective group for the amino group, and X is a protective group for the carboxyl group, are produced by reacting a benzyl penicillin ester of the formula ##EQU2## wherein X is as defined above, with a chlorinating agent in the presence of tertiary organic base to obtain an imide chloride group-incorporated compound of the formula ##EQU3## and then reacting the compound of the last-named formula with carboxylate of the formulaR-COOM (IV)wherein M is a metal atom, and R is as defined above.

    摘要翻译: 式O CH2-C的新型二酰基青霉素O CH2-C ANGLE S ANGLE CH3 N-CH-CHC ANGLE |||CH3 RC ANGLE ||| O||| O = C-N --- CH-COOX(I)其中R 或烷基,环烷基,芳基,芳烷基,苯氧基烷基,除异恶唑羧基衍生物以外的杂环羧基,或其中任选取代的苯甲烯环,B表示氨基的保护基,X为羧基的保护基, 通过使式S ANGLE CH3 CH2-CO-NH-CH-CHC ANGLE |||CH3 O = C-N --- CH-COOX(II)的苄基青霉素酯反应制备,其中X如上定义, 在叔有机碱的存在下与氯化剂反应,得到式I化合物的酰亚胺氯化物基团化合物。ANGLE CH3 CH2-C = N-CH-CHC ANGLE ||| CH3 ClO = C-N --- CH-COOX,(III),然后使最后命名的化合物与式R-COOM(Ⅳ)的羧酸酯反应,其中M是金属原子,R如上定义。