Drug – bio-affecting and body treating compositions – Plural fermentates of different origin
Patent
1981-03-10
1984-04-24
Goldberg, Jerome D.
Drug, bio-affecting and body treating compositions
Plural fermentates of different origin
A61K 3500
Patent
active
044447540
ABSTRACT:
The compounds of the formula (I): ##STR1## and esters thereof wherein R.sub.1 is a lower alkyl group or a phenyl group and R.sub.2 is a hydrogen atom or R.sub.2 together with R.sub.1 represents the residue of a fused benzene ring are .beta.-lactamase inhibitors and anti-bacterial agents. Their preparation and use is described.
Clarke Brian P.
Stirling Irene
Beecham Group Limited
Goldberg Jerome D.
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