Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1986-06-23
1989-05-30
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540221, C07D50157, A61K 31545
Patent
active
048351504
ABSTRACT:
.beta.-Lactam antibiotics are disclosed which have the formula (IA) or pharmaceutically acceptable salts or pharmaceutically acceptable in vivo hydrolyzable esters thereof: ##STR1## wherein R.sub.1 is phenyl, 3-hydroxyphenyl, 4-hydroxyphenyl, 3-aminophenyl, 4-aminophenyl, or 3,4-dihydroxyphenyl, the hydroxy and amino groups being optionally protected, and R is C.sub.1-8 alkyl; and also the use thereof.
Processes for the preparation of the compounds are disclosed together with intermediates for use therein.
REFERENCES:
patent: 4539149 (1985-09-01), Milnes
Branch Clive L.
Kaura Arun C.
Beecham Group p.l.c.
Rizzo Nicholas S.
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