| 摘要 |
<p>The present invention provides novel compound and their use of formula (I) or a cosmetically acceptable salt thereof as a skin lightening agent wherein in formula (I), A is an optionally substituted aryl or heteroaryl group, Z is C=O, C=S, C=CH2 or CH2, Y is NR1, O or S, X is S, SO or SO2, and where R1 is hydrogen, alkyl, alkylaryl or aryl. The invention also relates to the use of a ring opened derivative of formula (I).</p> |
