N-(phosphonacetyl)-L-aspartic acid salts with piperazine, cyclohexylamine and calcium
US4348522A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1981 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | May 8, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-(Phosphonoacetyl)-L-aspartic acid (PALA) compounds, especially novel PALA compounds, and methods for their preparation in large amounts are disclosed. These methods include preparation of certain PALA compounds such as PALA dibenzyl ester, disodium PALA, and the cyclohexylamine salt of dibenzyl PALA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.