Ester of 1,1-dioxopenicillanic acid, and use thereof as .beta.-lactamase
inhibitor
    11.
    发明授权
    Ester of 1,1-dioxopenicillanic acid, and use thereof as .beta.-lactamase inhibitor 失效
    1,1-二氧代青霉烷酸酯,其用作β-内酰胺酶抑制剂

    公开(公告)号:US4448769A

    公开(公告)日:1984-05-15

    申请号:US396471

    申请日:1982-07-08

    CPC分类号: C07D317/40 C07D499/00

    摘要: A 1,1-dioxopenicillanic acid ester represented by formula (I) ##STR1## wherein R represents a methyl or phenyl group. The ester of formula (I) may be prepared by reacting 1,1-dioxopenicillanic acid or its salt with a compound represented by formula (III) ##STR2## wherein R is as defined above, and X represents a halogen atom, or by oxidizing a compound of formula (V) ##STR3## wherein R is as defined above. The ester of the formula (I) is useful as a .beta.-lactamase inhibitor and may be used in association with a .beta.-lactam antibiotic.

    摘要翻译: 由式(I)表示的1,1-二氧代青霉烷酸酯其中R表示甲基或苯基。 式(I)的酯可以通过使1,1-二氧代青霉烷酸或其盐与式(III)表示的化合物反应制备,其中R如上定义,X​​表示卤素原子, 或通过氧化其中R如上定义的式(V)化合物(V)。 式(I)的酯可用作β-内酰胺酶抑制剂,并且可以与β-内酰胺抗生素结合使用。