Development of 5-[(3-Aminopropyl)phosphinooxy]-2-(hydroxymethyl)-4H-pyran-4-one as a Novel Whitening Agent.
作者:Duck Hee Kim、Jae-Sung Hwang、Heung Soo Baek、Kil-Joong Kim、Byeong Gon Lee、Ihseop Chang、Hak Hee Kang、Ok Sub Lee
DOI:10.1248/cpb.51.113
日期:——
A stable derivative of kojic acid, 5-[(3-aminopropyl)phosphinooxy]-2-(hydroxymethyl)-4H-pyran-4-one (Kojyl-APPA), was synthesized in good yield. The effects of Kojyl-APPA on tyrosinase activity and melanin synthesis were investigated. Kojyl-APPA showed tyrosinase inhibition effect (30%) in situ, but not in vitro. Kojyl-APPA inhibited tyrosinase activity significantly at 24 h after treatment in normal human melanocytes. It means that Kojyl-APPA is not a direct inhibitor of tyrosinase itself, but it is converted to a potential inhibitor kojic acid enzymatically in cells. In addition, Kojyl-APPA decreased melanin content to 75% of control in melanoma cells and decreased neomelanin synthesis to 43% of control in normal human melanocytes. Its permeation through skin increased by about 8 times as compared with kojic acid.