Process for the preparation of a N,N-diamino amino acid-&bgr;-hydroxy disuccinic acid
US6649793B1 · kind B1 · utility
0Cited by
6References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 21, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process of the preparation of a N,N-diamino amino acid-&bgr;-hydroxy-succinic acid as a N,N-diacid salt (I) is described. The process involves reacting epoxy succinic acid with an amino acid having two amino groups as an N-acid salt. The compounds are useful as chelators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.