申请人:Pola Chemical Industries Inc.
公开号:EP2514402A1
公开(公告)日:2012-10-24
An object is to provide an external preparation for skin preferably usable to prevent or ameliorate pigmentation. The object is achieved by providing a preventing or ameliorating agent for pigmentation, consisting of a compound represented by the following general formula (1), an isomer thereof, and/or a pharmacologically acceptable salt thereof, and an external preparation for skin containing the same as a component:
[wherein R1 represents an unsubstituted aromatic group or an aromatic group having any substituent; R2 represents a hydrogen atom, a linear chain or branched chain alkyl group having a number of carbon atom or atoms of 1 to 4, or an acyl group having a linear or branched alkyl chain having a number of carbon atom or atoms of 1 to 4; and R3 represents a hydrogen atom or a linear chain or branched chain alkyl group having a number of carbon atom or atoms of 1 to 4.]
目的是提供一种可用于预防或改善色素沉着的皮肤外用制剂。为实现上述目标,我们提供了一种色素沉着预防或改善剂,它由以下通式(1)所代表的化合物、其异构体和/或其药理上可接受的盐组成,以及一种以其为成分的皮肤外用制剂:
[其中 R1 代表未取代的芳香基团或具有任何取代基的芳香基团;R2 代表氢原子、碳原子数为 1 至 4 的直链或支链烷基或具有碳原子数为 1 至 4 的直链或支链烷基的酰基;R3 代表氢原子或碳原子数为 1 至 4 的直链或支链烷基。]