Beta-lactam antibacterial agents, their pharmaceutical compositions and process for their preparation
The compounds of the formula (I): (I) wherein R1 is a hydrogen atom, a trityl group or an acyl group as found in known antibacterially active penicillins or cephalosporins; R2 is a hydrogen atom, a lower alkyl group or an aryl group; R3 is a hydrogen atom, a lower alkyl group, a substituted lower al...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
19.09.1979
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Subjects | |
Online Access | Get full text |
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Summary: | The compounds of the formula (I): (I) wherein R1 is a hydrogen atom, a trityl group or an acyl group as found in known antibacterially active penicillins or cephalosporins; R2 is a hydrogen atom, a lower alkyl group or an aryl group; R3 is a hydrogen atom, a lower alkyl group, a substituted lower alkyl or a thiosubstituted lower alkyl group; and R4 is a group such that CO2R4 is a carboxylic acid group or a salt or readily removable ester thereof; are antibiotics. The compounds may be formulated in pharmaceutical compositions. Processes for the preparation of the compounds (I) are also described. |
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Bibliography: | Application Number: EP19790300230 |