Carbapenem derivatives containing a bicyclic substituent, process for their preparation, and their use
申请人:ZENECA LIMITED
公开号:EP0695753A1
公开(公告)日:1996-02-07
The present invention relates to carbapenems and provides a compound of the formula (I)
wherein
R¹is hydroxymethyl, 1-hydroxyethyl or 1-fluoroethyl;
Ris hydrogen or C₁₋₄alkyl;
X¹is oxygen or sulphur; and
Ais of the formula
which is optionally substituted on either ring and wherein B is of the formula -CH₂-C(=O)-(CH₂)n-, -C(=O)-(CH₂)n1-, -C(=O)-CH=CH-X-, -C(=O)CH₂CH₂X-, -(CH₂)nC(=0)NH- or -CH=CHC(=O)NH- wherein n is 1 or 2, n¹ is 2 or 3 and X is NH, 0 or S;
and a pharmaceutically acceptable salt or an in vivo hydrolysable ester thereof, processes for their preparation, intermediates in their preparation, their use as therapeutic agents and pharmaceutical compositions containing them.