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:
Aug. 04, 2015
Filed:
Mar. 12, 2010
Pier Lucio Anelli, Colleretto Giacosa, IT;
Marino Brocchetta, Pavia, IT;
Roberta Fretta, Colleretto Giacosa, IT;
Luciano Lattuada, Colleretto Giacosa, IT;
Armando Mortillaro, Colleretto Giacosa, IT;
Pier Lucio Anelli, Colleretto Giacosa, IT;
Marino Brocchetta, Pavia, IT;
Roberta Fretta, Colleretto Giacosa, IT;
Luciano Lattuada, Colleretto Giacosa, IT;
Armando Mortillaro, Colleretto Giacosa, IT;
Bracco Imaging S.P.A., Milan, IT;
Abstract
The present invention relates to a process for the preparation of given carboxamido compounds, in particular of 2,4,6-triiodoisophthalic acid derivatives, as useful intermediates for the preparation of X-ray contrast media among which is iopamidol. The said process comprises reacting suitable N-sulfinyl intermediate compounds with a commercially available α-hydroxyacid or a salt thereof.