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:
Nov. 21, 2000
Filed:
Apr. 16, 1998
Applicant:
Inventors:
Fulvio Uggeri, Milan, IT;
Franco Fedeli, Milan, IT;
Alessandro Maiocchi, Milan, IT;
Maurizio Franzini, Milan, IT;
Mario Virtuani, Milan, IT;
Assignee:
Dibra S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; C07D / ; C07F / ;
U.S. Cl.
CPC ...
424-9263 ; 540465 ; 540474 ; 534 16 ; 534 10 ; 534 14 ; 534 15 ;
Abstract
Compounds of formulae (I) and (II) ##STR1## wherein the R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 groups have the meanings defined in the disclosure, are useful chelants for metal ions. The complexes of compounds (I) and (II) with paramagnetic ions are useful as contrast agents for M.R.I. imaging.