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. 25, 1994
Filed:
Apr. 27, 1992
Applicant:
Inventors:
Jan Verweij, Leiden, NL;
Henri G Hirs, Zoetermeer, NL;
Hendrik A Witkamp, Pijnacker, NL;
Everardus J Leenderts, Rhoon, NL;
Jan J Dekoning, Rijswijk, NL;
Herman H Grootveld, Benthuizen, NL;
Assignee:
Gist-Brocades, N.V., , NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
540226 ; 540222 ; 540225 ; 540228 ; 540230 ;
Abstract
A cephalosporin compound substituted in the 7-position with a (cyclo)alkylideneammonio group of formula (II) ##STR1## wherein X' is an anion from an acid HX, R.sub.1 and R.sub.2 are individually a C.sub.1 -C.sub.16 alkyl group, or R.sub.1 and R.sub.2 together with the carbon atom to which they are attached form a cycloalkylidene ring with up to 8 carbon atoms and a process for the preparation which compounds are useful intermediates.