The invention relates to novel derivatives of quinolonecarboxylic acid and naphthyridonecarboxylic acid which are linked to a .beta.-lactam antibiotic, to their salts, to processes for their preparation and to antibacterial agents containing these derivatives.
Enantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and process
申请人:Bayer Aktiengesellschaft
公开号:US05436334A1
公开(公告)日:1995-07-25
The invention relates to enantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and processes for their preparation. The starting, intermediate and end products are as follows: ##STR1##
The present invention relates to a compound represented by the following formula (1):
wherein W, X, Y, R1, R2, R33, R34, m and n are as defined in the claims, or a pharmacologically acceptable salt thereof.