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. 22, 2009
Filed:
Aug. 24, 2006
Applicants:
Silvia Ceragioli, Ceriano Laghetto, IT;
Giovanni Luca Ciarciello, Ceriano Laghetto, IT;
Luciano Castiglia, Milan, IT;
Inventors:
Silvia Ceragioli, Ceriano Laghetto, IT;
Giovanni Luca Ciarciello, Ceriano Laghetto, IT;
Luciano Castiglia, Milan, IT;
Assignee:
Bracco Imaging S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 229/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention refers to a process for preparing a compound of formula (I) through a carboxymethylation reaction occurring in the presence of a suitable alkylating agent and of a base, without the need of monitoring the pH of the reaction environment. The compound of formula (I) is a useful intermediate in the preparation of diagnostic contrast agents for MRI techniques.