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:
Jun. 23, 1987
Filed:
Nov. 18, 1985
Applicant:
Inventors:
Barry C Ross, Luton, GB;
Graham Johnson, Ann Arbor, MI (US);
Assignee:
Hoechst UK Limited, Hounslow, GB;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
540310 ;
Abstract
Compounds of the formula Ia and their tautomers Ib ##STR1## in which formulae R represents a carboxyl esterifying group are described, as well as processes for their manufacture. Ia and Ib are valuable starting materials for the preparation of various derivatives substituted at position 3 that possess antibacterial properties.