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. 18, 2022
Filed:
Aug. 02, 2019
Applicant:
Guerbet, Villepinte, FR;
Inventors:
Pellinghelli Stéphan, Bruyeres sur Oise, FR;
Myriam Petta, Montmorency, FR;
Assignee:
GUERBET, Villepinte, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 231/02 (2006.01);
U.S. Cl.
CPC ...
C07C 231/02 (2013.01); C07C 231/02 (2013.01); C07C 233/69 (2013.01);
Abstract
A process for preparing an organo-iodinated compound, comprising the following steps: a) acylating 2,4,6-triiodo-5-aminoisophthalic acid of formula (A) below: to obtain an intermediate compound Ya; b) chlorinating the intermediate compound Ya to obtain an organo-iodinated intermediate compound Yb; c) amidating the organo-iodinated intermediate compound Yb to obtain an intermediate compound Yc; and d) deprotecting the intermediate compound Yc, the steps a), b), c) and d) being carried out without isolation of at least one intermediate compound chosen from Ya and Yc.