The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1988
Filed:
Apr. 22, 1986
Applicant:
Inventors:
Michael D Cooke, Newport Pagnell, GB;
Barry C Ross, Luton, GB;
Assignee:
Hoechst UK Limited, Hounslow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07F / ;
U.S. Cl.
CPC ...
540360 ;
Abstract
Intermediate compounds of the formula ##STR1## for the preparation of antibacterially active penem compounds and salts wherein R is hydrogen or an esterifying group, R.sup.1 is an unsubstituted or a mono-, di-, or tri-substituted phenyl, naphthyl, thienyl, pyridyl, quinolyl or isoquinolyl, R.sup.2 is hydrogen or a hydroxyl group which may be protected, R.sup.4 is chlorine or bromine and R.sup.5 is an alkyl or phenyl group; methods for making such compounds or salts.