Synthesis of N-kojic-amino acid and N-kojic-amino acid-kojiate and their tyrosinase inhibitory activity

Autor: Yuka Kobayashi, Koji Tadasa, Hiroshi Kayahara, Hidenori Tanaka
Rok vydání: 1996
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 6:1303-1308
ISSN: 0960-894X
DOI: 10.1016/0960-894x(96)00221-1
Popis: Ten amino acid derivatives of kojic acid were synthesized to improve the tyrosinase inhibitory activity of kojic acid. Almost all derivatives showed stronger activities than kojic acid, and in general, N-kojic-amino acid-kojiate was found to have a higher inhibitory potency than N-kojic-amino acid. Among them, the N-kojic-L-phenylalanyl kojiate was the strongest inhibitor and its IC50 value was 1/380 that for kojic acid. The inhibition mechanism of these derivatives is considered to be noncompetitive which is similar to that of kojic acid.
Databáze: OpenAIRE