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:
Feb. 06, 2018
Filed:
Sep. 17, 2013
Applicant:
GE Healthcare As, Oslo, NO;
Inventors:
Assignee:
GE Healthcare AS, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 231/14 (2006.01); C07C 231/02 (2006.01); C07C 231/24 (2006.01); C07C 237/46 (2006.01);
U.S. Cl.
CPC ...
C07C 231/14 (2013.01); C07C 231/02 (2013.01); C07C 231/24 (2013.01); C07C 237/46 (2013.01);
Abstract
The present invention relates to a process for the preparation of iodinated X-ray contrast agents and in particular to key intermediates thereof. More particularly, the invention relates to a work-up process for preparation of a compound mixture comprising 1-formylamino-3,5-bis(2,3-bis(formyloxy)propan-1-ylcarbamoyl)-2,4,6-trioodobenzene, a key intermediate in the process for preparing Ioforminol. Further, the invention relates to a process for preparing Ioforminol, a contrast agent useful in X-ray imaging.