107793-72-6Relevant articles and documents
Novel method for synthesizing ioxilan
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, (2018/03/01)
The invention belongs to the technical field of preparation of a non-ionic X-ray contrast agent and discloses a novel method for synthesizing ioxilan. The novel method for synthesizing ioxilan comprises the step of performing reactions such as acetic anhydride protection, ester exchange, iodination and alkylation to obtain ioxilan by taking 5-amino-N-(2-hydroxyl ethyl)-m-formamide methyl benzoate as a raw material. The invention provides an improved ioxilan synthetic method and a process easy for industrialized purification and solvent recrystallization. The invention provides the ioxilan synthesizing method which is more environment-friendly, cheap, high in yield and high in purity by taking 5-amino-N-(2-hydroxyl ethyl)-m-formamide methyl benzoate as the raw material.
PROCESS FOR THE ATOMIZATION OF IOXILAN
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Page/Page column 8; Fig.1, (2008/06/13)
The invention relates to a process for the preparation of ioxilan of formula 5-[N- (2,3-dihydroxypropyl)acetamido]-2,4,6-triiodo-N-(2,3-dihydroxypropyl)-N'-(2- hydroxyethyl)isophthalamide by atomization and to the improved product thus obtained. This process makes it possible to avoid a process by crystallization and results in an active principle having an improved solubility.
Non-ionic polyol contrast media from ionic contrast media
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, (2008/06/13)
Novel non-ionic contrast media of a hitherto unknown combination of low osmolality and low viscosity are efficiently prepared from generally available ionic contrast media or non-iodinated precursors. Particularly, polyhydroxyhalo-hydrocarbons are employed with a triiodo-substituted acylamido benzoic acids in aqueous weakly basic media to selectively substitute the amido nitrogen, followed by activation of the carboxyl group for amide formation.