Unsaturated amino acids
US5175344A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Jul 17, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4015
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to unsaturated amino acids of the formula I ##STR1## in which R.sup.1 represents hydroxy or etherified hydroxy, R.sup.2 represents hydrogen, alkyl, hydroxy or etherified hydroxy, R.sup.3 represents hydrogen, alkyl, haloalkyl, hydroxyalkyl, lower alkoxyalkyl, arylalkyl, lower alkenyl, halogen or aryl, R.sup.4 represents hydrogen, alkyl or aryl, R.sup.5 represents hydrogen or alkyl, R.sup.6 represents carboxy or esterified or amidated carboxy, R.sup.7 represents amino or amino substituted by alkyl or acyl, A represents unsubstituted or alkyl-substituted .alpha.,.omega.-alkylene having from 1 to 3 carbon atoms or represents a bond, and B represents methylene or a bond, with the proviso that A is other than a bond when B represents a bond, and salts thereof. They can be manufactured, for example, in accordance with the Michaelis-Arbuzov reaction and can be used as pharmacologically active substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.