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:
Oct. 14, 1980
Filed:
Sep. 08, 1977
Applicant:
Inventors:
Assignee:
Glaxo Laboratories Limited, Greenford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602453 ; 2603 / ; 544 60 ; 544111 ; 546133 ; 546208 ; 546275 ;
Abstract
.beta.-Lactam compounds of the formula (I) ##STR1## (wherein R represents an esterified carboxyl group, --NR.sup.1 R.sup.2 R.sup.3 represents the residue of a nitrogen base, and R.sup.4 represents a hydrogen atom, a hydroxyl group or acylated or etherified hydroxyl group or the residue of a sulphur nucleophile) are disclosed, together with processes for their preparation. The compounds are valuable intermediates for the preparation or purification of further .beta.-lactam compounds having .beta.-lactamase inhibitory activity.