LT - Method for purifying 5-amino-N,N`-bis(2,3-dihydroxypropyl)-isophthalamide, an intermediate in the preparation of non-ionic X-ray contrast agents
EN - Method for purifying 5-amino-N,N`-bis(2,3-dihydroxypropyl)-isophthalamide, an intermediate in the preparation of non-ionic X-ray contrast agents
Legal status
Patent not validated
Bibliographic data
Indications of the International Patent Classification (IPC)
| (51) |
INT.CL. |
C07C 231/24 |
|
|
|
C07C 237/32 |
|
European patent
| (11) |
Number of the document |
2289870 |
| (13) |
Kind of document |
T |
| (96) |
European patent application number |
09176517.2 |
|
Date of filing the European patent application |
2009-11-19 |
| (97) |
Date of publication of the European application |
2011-03-02 |
| (45) |
Date of publication and mention of the grant of the patent |
2012-11-07
|
| (46) |
Date of publication of the claims translation |
|
Priority applications
| (30) |
Number |
Date |
Country code |
|
227086 P |
2009-07-21
|
US |
Inventors
| (72) |
Haaland, Torfinn, NO
Homestad, Ole, Magne, NO
|
Grantee
| (73) |
GE Healthcare AS,
Nycoveien 1-2 P.O. Box 4220 Nydalen, 0401 Oslo,
NO
|
Title
| (54) |
Method for purifying 5-amino-N,N`-bis(2,3-dihydroxypropyl)-isophthalamide, an intermediate in the preparation of non-ionic X-ray contrast agents |
| |
Method for purifying 5-amino-N,N`-bis(2,3-dihydroxypropyl)-isophthalamide, an intermediate in the preparation of non-ionic X-ray contrast agents |
