Amino acid derivatives and active oxygen-resisting agent

Details Amino acid derivatives and active oxygen-resisting agent Amino acid derivatives and active oxygen-resisting agent

1998-04-03

1999-11-16

Geist, Gary

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Ester doai

514620, 560 40, 560 41, A01N 3712, A01N 3718, C07C22928

Patent

active

059859229

ABSTRACT:
Provided is a novel active oxygen-resisting agent which has an excellent active oxygen resistance and which exhibits a good solubility in an oil solvent. An active oxygen-resisting agent containing as an active ingredient an amino acid derivative represented by the following formula (I) ##STR1## wherein Ar represents a substituted or substituted 2-hydroxyphenyl group or a pyridyl group, said substitution being selected from the group consisting of a halogen atom, a C.sub.1-6 alkyl group, a hydroxyl group, a hydroxy C.sub.1-6 alkyl group, a nitro group, a C.sub.1-6 alkoxyl group or a carboxyl group, R.sup.1 represents a side chain of an amino acid, X represents --O-- or --NH--, R.sup.2 represents a C.sub.8-22 alkyl group, and n represents 0 or 1, or its salt.

REFERENCES:
patent: 4254087 (1981-03-01), Grinstead
patent: 4382872 (1983-05-01), Grinstead
patent: 5594012 (1997-01-01), Kitazawa et al.
Database CAPLUS on STN, Acc. No. 1982:38811, Grinstead, `Composition and methods for metal extraction,` FR 2462182, abstract, 1982.

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