申请人:Yamamoto Keisuke
公开号:US20130102620A1
公开(公告)日:2013-04-25
The invention provides a pyrazolopyrimidine derivative of formula (I), wherein, for example, R
1
represents —NR
1a
R
1b
(wherein R
1a
and R
1b
are the same or different and each is a hydrogen atom or aralkyl), R
2
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, R
5
represents halogen, R
6
represents aryl, X represents —CR
8
(wherein R
8
represents a hydrogen atom), and R
7
represents a hydrogen], R
3
represents —SO
2
R
13a
[wherein R
13a
represents lower alkoxy, —NR
13d
C(═O)R
13e
(wherein R
13d
represents a hydrogen atom, and R
13e
represents lower alkyl)], and R
4
represents a hydrogen atom, or a pharmaceutically acceptable salt thereof. The invention also provides a medicament containing the pyrazolopyrimidine derivative, as well as a method of using the pyrazolopyrimidine derivative to prevent and/or treat skin diseases.
该发明提供了一种式为(I)的吡唑嘧啶衍生物,其中,例如,R1代表—NR1aR1b(其中R1a和R1b相同或不同,每个都是氢原子或芳基烷基),R2代表式(Ya) [其中k和m分别表示0-2的整数,n表示0-4的整数,L表示单键,R5表示卤素,R6表示芳基,X表示—CR8(其中R8表示氢原子),R7表示氢],R3表示—SO2R13a [其中R13a表示较低的烷氧基,—NR13dC(═O)R13e(其中R13d表示氢原子,R13e表示较低的烷基)],R4表示氢原子,或其药学上可接受的盐。该发明还提供了含有该吡唑嘧啶衍生物的药物,以及使用该吡唑嘧啶衍生物预防和/或治疗皮肤疾病的方法。