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:
Apr. 14, 2015
Filed:
Jan. 07, 2014
Applicant:
Mallinckrodt Llc, Hazelwood, MO (US);
Inventor:
James R. Meyer, St. Louis, MO (US);
Assignee:
Liebel-Flarsheim Company LLC, Hazelwood, MO (US);
Attorney:
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
The present disclosure generally relates to a new process for the preparation of high purity 5-nitro-isophthalamide compounds, which are useful as intermediates for the preparation of imaging agents, such as iodinated x-ray contrast imaging agents like ioversol, iohexyl and iopamidol.