Substituted phenylglycine derivatives of beta-lactam antibiotics
申请人:BEECHAM GROUP PLC
公开号:EP0131174A1
公开(公告)日:1985-01-16
A compound having the partial structure (I)
wherein R' and R2 may be the same or different and each is hydrogen or a group -COR5 or -CO-OR5 wherein R5 represents an optionally substituted hydrocarbon group; R3 is halogen and R4 is hydrogen, methoxy, hydroxymethyl or formamido.
These compounds are suitably bicyclic β-lactam antibiotics