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. 06, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Luigi Ratti, Bergamo, IT;
Assignee:
Biochimica Opos S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
540316 ; 540333 ; 544369 ; 548172 ;
Abstract
The 6-[D(-)-alpha(4-ethyl-2,3-dioxopiperazin-1-ylcarbonylamino)-alphaphenylace tamido]penicillanic acid and the salts thereof are prepared by synthetizing the novel intermediates, thioesters of D(-)-alpha-(4-ethyl-2,3-dioxopiperazin-1-ylcarbonylamino)-alpha-phenylacet ic acid, with mercaptoheterocycles and by converting them into the desired compound by reaction with 6-amino-penicillanic acid.