申请人:Leo Pharmaceutical Products Ltd. A/S (Lovens Kemiske Fabrik
公开号:US04325960A1
公开(公告)日:1982-04-20
The present invention relates to hitherto unknown compounds of the general formula I: ##STR1## in which R.sub.1 stands for a five- to ten-membered azacycloalkyl or azabicycloalkyl residue attached via the nitrogen atom and optionally being substituted by one or two, the same or different, lower alkyl groups; R.sub.2 represents a hydrogen atom or a lower alkyl, aryl, or aralkyl radical; and A represents a radical of a .beta.-lactamase inhibitor containing a .beta.-lactam ring as well as a carboxy group, A being connected via the carboxy group. The present compounds are useful in the treatment of bacterial infections. The new compounds are in particular strongly active against .beta.-lactamase producing bacteria.
本发明涉及到迄今为止未知的一般式I的化合物:
其中R.sub.1代表通过氮原子连接的五元至十元的氮杂环烷基或氮杂双环烷基残基,并且可选择地被一个或两个、相同或不同的较低烷基基团取代;R.sub.2代表氢原子或较低烷基、芳基或芳基烷基基团;A代表含有β-内酰胺酶抑制剂的基团,该基团包含一个β-内酰胺环以及一个羧基,A通过羧基连接。这些化合物在治疗细菌感染中非常有用。这些新化合物特别对产生β-内酰胺酶的细菌具有强烈的抗活性。