申请人:Yamasaki Takashi
公开号:US20120282203A1
公开(公告)日:2012-11-08
An object of the present invention is to provide a prophylactic or ameliorating agent for pigmentation having a novel scaffold and an external preparation for skin containing the same as a component. The object is achieved by providing a prophylactic or ameliorating agent for pigmentation comprising 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 R
1
represents a hydrogen atom or a linear chain or branched alkyl group having 1 to 8 carbon atom(s); R
2
represents a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 8 carbon atom(s), a substituted or unsubstituted aromatic group, a substituted or unsubstituted polycyclic fused aromatic group, or a substituted or unsubstituted heterocyclic group having a 5 to 12 carbon atoms; R
3
represents a substituted or unsubstituted aromatic group, a substituted or unsubstituted polycyclic fused aromatic group, or a substituted or unsubstituted heterocyclic group having a 5 to 15 carbon atoms; n represents an integer of 1 or 2; and m represents an integer of 0 to 3.]
本发明旨在提供一种具有新型支架的色素沉着预防或改善剂和含其作为组分的皮肤外用制剂。该目的通过提供以下通式(1)所表示的化合物、其异构体和/或其药理学上可接受的盐,并作为组分含有其皮肤外用制剂来实现:[式中,R1表示氢原子或具有1至8个碳原子的线性链或支链烷基;R2表示氢原子,具有1至8个碳原子的取代或未取代的脂肪烃基,取代或未取代的芳香族基,取代或未取代的多环融合芳香族基,或具有5至12个碳原子的取代或未取代的杂环基;R3表示取代或未取代的芳香族基,取代或未取代的多环融合芳香族基,或具有5至15个碳原子的取代或未取代的杂环基;n表示1或2的整数;m表示0至3的整数。]