X-ray contrast media
AssigneeLaboratoires Andre Guerbet
InventorsGuy Tilly, Michel Jean-Charles Hardouin, Jean Lautrou
Life of this patent
Estimating the term…
Abstract
This invention relates to compounds having the following general formula: ##STR1## in which n is an integer from 0 to 4; R.sub.1 and R.sub.2 represent independently from each other a radical of the formula --CONHR.sub.5 in which R.sub.5 is an alkyl radical having 1-4 carbon atoms or a hydroxyalkyl radical having 1-4 carbon atoms or a radical of the formula ##STR2## in which R.sub.6 and R.sub.7 are alkyl radicals having 1-4 carbon atoms; and R.sub.3 and R.sub.4, independently from each other, represent a hydrogen atom or an alkyl radical having 1-4 carbon atoms. Said compounds are useful as X-ray contrast media, particularly for myelography.
Claims3
Compounds having the general formula:
- ##STR37## in which:
- n is an integer from 0 to 4,
- R.sub.1 and R.sub.2, independently from each other, are selected from the group consisting of a radical of the formula --CONHR.sub.5, in which R.sub.5 is selected from the group consisting of alkyl having 1-4 carbon atoms and hydroxyalkyl having 1-4 carbon atoms, and a radical of the formula ##STR38## in which R.sub.6 and R.sub.7 each represent alkyl radicals having 1-4 carbon atoms, and
- R.sub.3 and R.sub.4, independently from each other, are selected from the group consisting of hydrogen and alkyl having 1-4 carbon atoms.
1,2-N,N'-bis(2,4,6-triiodo-3-N-methyl-N-acetylamino-5-N-gluco nylamino-benzoyl)diamino-ethane.
Dependencies are inferred from the claim text.