Hexadentate ligands useful in radiographic imaging agents
US5243073A · kind A · utility
9Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1990 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2123/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to novel preorganized hexadentate ligands suitable for complexing with a radionuclide to form imaging agents for diagnostic purposes. The ligands have the formula: ##STR1## wherein a) R.sub.2 is hydrogen and R.sub.3 is methyl; or R.sub.2 and R.sub.3 together form a methoxy benzene ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.