Novel amino-dioxepane intermediates for the synthesis of new non-ionic contrast media
US4341756A · kind A · utility
11Cited by
2References
31Claims
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Key dates
| Filing date | Apr 17, 1980 |
| Grant date | Jul 27, 1982 |
| Priority date | — |
| Expiry date | Apr 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D321/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel intermediates for non-ionic polyiodo amino-substituted benzenepolyamides having polyol substituents on the amide nitrogens are provided which are 5-amino-6-hydroxy-1,3-dioxepanes. The compounds provide an economic and efficient route to novel contrast media having excellent chemical and physiological properties. Also provided are methods for preparing the subject compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.