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. 21, 1976
Filed:
Sep. 21, 1973
Applicant:
Inventors:
John Peter Clayton, Horsham, EN;
Harry Ferres, Horsham, EN;
Assignee:
Beecham Group Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
2602391 ; 424271 ;
Abstract
Mono-esters of .alpha.-carboxypenicillins and their preparation are described including intermediates for the mono-esters. The mono-esters are esterified on the .alpha.-carboxy group. They are well absorbed orally and de-esterified in vivo to give high serum concentrations of the parent .alpha.-carboxypenicillins.