Preparation and use of .alpha.-(hydroxyimino) phosphonoacetic acids
US5948931A · kind A · utility
4Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jul 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
.alpha.-(hydroxyimino)phosphonoacetic acids (also referred to as ".alpha.,.alpha.-disubstituted trifunctional oximes" and "Troika Acids") and their derivatives, and methods to prepare them are disclosed. Also disclosed are the structures and fragmentation pathways of the .alpha.-(hydroxyimino)phosphonoacetic acids. The .alpha.-(hydroxyimino)phosphonoacetic acids and derivatives are useful as pH sensitive chelating agents, enzyme activated drugs, drug delivery agents, phosphorylating reagents and photo-activated reagents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.