2-pyridylmethylenepolyazamacrocyclophosphonic acids, complexes and derivatives thereof, for use as contrast agents
US5462725A · kind A · utility
23Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1993 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | May 6, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
2-Pyridylmethylenepolyazamacrocyclophosphonic acid compounds and their derivatives are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization. The complexes are useful as contrast agents for diagnostic purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.