FIELD: chemistry.
SUBSTANCE: invention refers to a method of obtaining a compound (1) used as a contrast agent for carrying out radiological studies, from the compound (3). In the compound (3), each X individually represents hydrogen, a formyl group (-CO-H) or an acetyl group (-CO-CH3). The method includes a base-activated in situ hydrolysis of the protecting groups (-OX) of the compound (3), comprising the following successive steps: i) suspending the compound (3) in water; ii) adjusting the pH of the solution obtained in step i) to a value between 10.0 and 12.5.
EFFECT: method makes it possible to shorten the reaction time and increase the yield of the compound.
6 cl, 1 ex
Title | Year | Author | Number |
---|---|---|---|
PREPARATION OF AN INTERMEDIATE COMPOUND OF IOFORMINOL SYNTHESIS | 2013 |
|
RU2654461C2 |
PURIFICATION OF X-RAY CONTRAST AGENTS | 2013 |
|
RU2662941C2 |
CONTRAST AGENTS | 2008 |
|
RU2469021C2 |
PREPARATION OF INTERMEDIATES OF X-RAY CONTRAST AGENTS | 2013 |
|
RU2659214C2 |
METHOD AND REAGENT FOR PREPARING A DIAGNOSTIC COMPOSITION | 2014 |
|
RU2662319C2 |
PROCESS FOR PREPARATION OF IOPAMIDOL | 2014 |
|
RU2657238C2 |
METHOD OF IODISING AROMATIC COMPOUNDS | 2009 |
|
RU2469997C2 |
METHOD OF PREPARING IONEXOL | 1997 |
|
RU2173315C2 |
IODINATED ARYL COMPOUNDS AND DIAGNOSTIC COMPOSITION BASED THEREON | 1995 |
|
RU2145955C1 |
METHOD FOR PRODUCING INJECTED CONTRAST MEDIUM | 0 |
|
SU1829940A3 |
Authors
Dates
2018-01-25—Published
2013-09-17—Filed