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. 16, 1984
Filed:
Feb. 03, 1982
Applicant:
Inventors:
Assignee:
Beecham Group p.l.c., , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544212 ; 544182 ; 544198 ; 544209 ; 544215 ; 544219 ; 544298 ; 544316 ; 544319 ; 546272 ; 548252 ; 548253 ; 548336 ; 2602 / ; 2602 / ;
Abstract
A process for the preparation of an antibacterially active compound of the formula (I): ##STR1## and salts and esters thereof wherein R.sup.1 and R.sup.2 independently are hydrogen or an organic group, and R.sup.3 is an organic group bonded via a carbon atom to the sulphur atom, which comprises reacting a compound of the formula (II): ##STR2## wherein R.sup.4 is an organic group different to R.sup.3 and R.sup.a is hydrogen or a carboxy-blocking group, with a thiol R.sup.3 SH or reactive derivative thereof. In addition certain compounds within the formula (II) are novel and useful antibacterial agents in their own right.