申请人:Kyowa Hakko Kirin Co., Ltd.
公开号:EP2543670A1
公开(公告)日:2013-01-09
The present invention provides a pyrazolopyrimidine derivative represented by formula (I)
wherein R1 represents -NR1aR1b (wherein R1a and R1b are the same or different and each is a hydrogen atom, aralkyl, or the like), or the like,
R2 represents formula (Ya)
[wherein k and m each represents an integer of 0 - 2, n represents an integer of 0 - 4, L represents a single bond or the like, R5 represents halogen or the like, R6 represents aryl or the like, X represents -CR8 (wherein R8 represents a hydrogen atom or the like), or the like, and R7 represents a hydrogen or the like], or the like,
R3 represents -SO2R13a [wherein R13a represents lower alkoxy, - NR13dC(=O)R13e (wherein R13d represents a hydrogen atom or the like, and R13e represents lower alkyl or the like), or the like], or the like, and
R4 represents a hydrogen atom or the like}, or a pharmaceutically acceptable salt thereof, useful as a prevention and/or therapeutic agent for skin diseases, and the like.
本发明提供了由式(I)代表的吡唑嘧啶衍生物
其中 R1 代表-NR1aR1b(其中 R1a 和 R1b 相同或不同,且各自为氢原子、芳烷基或类似物)或类似物、
R2 代表式 (Ya)
[其中 k 和 m 各代表 0 - 2 的整数,n 代表 0 - 4 的整数,L 代表单键或类似物,R5 代表卤素或类似物,R6 代表芳基或类似物,X 代表 -CR8(其中 R8 代表氢原子或类似物)或类似物,R7 代表氢或类似物]或类似物、
R3 代表-SO2R13a[其中 R13a 代表低级烷氧基、-NR13dC(=O)R13e(其中 R13d 代表氢原子或类似物,R13e 代表低级烷基或类似物)]或类似物,以及
R4代表氢原子或类似物},或其药学上可接受的盐,可用作皮肤病的预防和/或治疗剂等。