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.
一种稳定形式的曲酸衍生物,5-[(3-氨基丙基)膦酸氧]-2-(羟甲基)-4H-吡喃-4-酮(Kojyl-APPA),以良好产率合成。研究了Kojyl-APPA对酪氨酸酶活性和黑色素合成的影响。Kojyl-APPA在原位显示出酪氨酸酶抑制作用(30%),但在体外没有抑制作用。Kojyl-APPA在处理24小时后显著抑制正常人黑素细胞中的酪氨酸酶活性。这意味着Kojyl-APPA不是酪氨酸酶本身的直接抑制剂,而是在细胞内通过酶促转化为其潜在抑制剂曲酸。此外,Kojyl-APPA使黑色素瘤细胞中的黑色素含量降低至对照组的75%,并在正常人黑素细胞中使新黑色素合成减少至对照组的43%。与曲酸相比,其穿透皮肤的能力增加了约8倍。