OBTAINING OF IOFORMINOL - RADIO-OPAQUE AGENT Russian patent published in 2018 - IPC C07C231/12 C07C237/46 A61K49/04 

Abstract RU 2642436 C2

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

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RU 2 642 436 C2

Authors

Thaning Mikkel

Olsson Andreas

Glogard Christian

Dates

2018-01-25Published

2013-09-17Filed