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:
Mar. 02, 1993
Filed:
Oct. 11, 1991
Hans Wielinger, Weinheim, DE;
Gerd Zimmermann, Mannheim, DE;
Boehringer Mannheim GmbH, Mannheim, DE;
Abstract
The present invention provides compounds of the general formula: ##STR1## wherein R.sup.1 is an amino acid residue or a residue of an oligopeptide in which the amino groups are optionally substituted by protective groups, R.sup.2 and R.sup.3, which are the same or different, are hydrogen atoms, a lower alkyl, lower alkoxy, carboxyl or lower alkoxycarbonyl radicals or carboxamido groups optionally substituted by lower alkyl or, if R.sup.2 and R.sup.3 are adjacent, can represent a --CH.dbd.CH--CH.dbd.CH-- radical, Z is conjugated-through positively charged, bicyclic heterocyclic system and X is an anion of an organic or inorganic acid. The present invention also provides processes for the preparation of these compounds and diagnostic agents containing them for the determination of peptide bond-cleaving enzymes.