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:
May. 30, 1989
Filed:
Jun. 23, 1986
Applicant:
Inventors:
Clive L Branch, Dorking, GB;
Arun C Kaura, Horsham, GB;
Assignee:
Beecham Group p.l.c., , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
514201 ; 540221 ;
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.