Iodinated aroyloxy carboxamides
US5260478A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Dec 8, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/43
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds having the structure ##STR1## wherein (Z--COO is the residue of an iodinated aromatic acid; PA1 n is an integer from 0 to 20; PA1 R.sup.1 and R.sup.2 are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy or aryloxy; PA1 R.sup.3 and R.sup.4 are independently a substituent as defined for R.sup.1 and R.sup.2 above, halogen, hydroxy or acylamino; PA1 and R.sup.5 and R.sup.6 are independently H, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, alkoxyalkyl, or acetamidoalkyl; PA1 or R.sup.5 and R.sup.6, taken together with the nitrogen atom to which they are attached, represent a 4 to 7-membered nitrogen containing ring, are useful as contrast agents in x-ray imaging compositions and methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.