Beta-lactam antibiotics, a process for their preparation and pharmaceutical compositions containing them
申请人:BEECHAM GROUP PLC
公开号:EP0003740A2
公开(公告)日:1979-09-05
The present invention provides the antibacterial agents of the formula (II):
Wherein R1 is a group such that CO2R1 is a carboxylic acid group or a salt thereof or is a group of the formula CO2R wherein is a group such that CO2 is an ester group, R2 is a hydrogen atom or a lower alkyl group; R3 is a hydrogen atom or a lower alkyl group; and R4 is a phenyl group or a phenyl group substituted by one or two groups selected from fluorine, chlorine, OR5, NH.CO.R5, NH.CO2R5 or C02Rs where Rs is a lower alkyl or benzyl group or R4 is a hydrogen atom or lower alkyl group or R4 is a CO2R5 group where Rs is a lower alkyl group or benzyl group or R4 is a NH.COnRe group where R6 is a lower alkyl group, a phenyl group or a phenyl group substituted by one or two halogen atoms, lower alkyl or lower alkoxyl groups: and n is 1 or 2. A process for their preparation and their use in pharmaceutical compositions is also described.
本发明提供了式(II)的抗菌剂:
其中 R1 是 CO2R1 是羧酸基团或其盐的基团,或者是式 CO2R 的基团,其中 R1 是 CO2 是酯基的基团;R2 是氢原子或低级烷基;R3 是氢原子或低级烷基;R4 是苯基或被选自氟、氯、OR5、NH.CO.R5、NH.CO2R5 或 C02Rs 的一个或两个基团取代的苯基。CO.R5、NH.CO2R5或C02Rs,其中Rs是低级烷基或苄基,或R4是氢原子或低级烷基,或R4是CO2R5基团,其中Rs是低级烷基或苄基,或R4是NH.COnRe基团,其中R6是低级烷基、苯基或被一个或两个卤素原子、低级烷基或低级烷氧基取代的苯基:且n是1或2。此外,还介绍了它们的制备过程及其在药物组合物中的用途。