申请人:Kitade Makoto
公开号:US20130289072A1
公开(公告)日:2013-10-31
The present invention relates to provision of a novel indazole compound which is capable of inhibiting HSP90 and shows a cytostatic effect on cancer cells. The present invention also relates to provision of a drug useful for preventing and/or treating, on the basis of an HSP90 inhibitory effect, a disease in which HSP90 participates, in particular, cancer. A compound represented by the general formula (I) or a salt thereof:
wherein
X represents CH or N;
any one or two of Y
1
, Y
2
, Y
3
, and Y
4
represent C—R
3
or N, and the others represent CH;
A and B are the same or different and represent an optionally substituted monocyclic unsaturated heterocyclic group having 1 to 4 heteroatoms selected from N, S, and O;
R
1
represents a hydrogen atom, an optionally substituted alkyl group having 1 to 6 carbon atoms etc.;
R
2
represents a hydrogen atom, a halogen atom etc.;
R
3
represents a hydrogen atom, a halogen atom etc.;
R
4
and R
5
are the same or different and represent a hydroxyl group etc.;
R
6
and R
7
are the same or different and represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms etc.; and
R
8
represents an optionally substituted cycloalkyl group having 3 to 7 carbon atoms etc.
本发明涉及提供一种新型吲唑化合物,能够抑制HSP90并对癌细胞显示细胞静止效应。本发明还涉及提供一种药物,用于基于HSP90抑制作用预防和/或治疗HSP90参与的疾病,特别是癌症。一种由通式(I)或其盐表示的化合物:其中X代表CH或N;Y1、Y2、Y3和Y4中的任意一个或两个代表C—R3或N,其余代表CH;A和B相同或不同,代表一个具有1到4个异原子(N、S和O)的可选择取代的单环不饱和杂环基;R1代表氢原子,具有1到6个碳原子等的可选择取代的烷基基团;R2代表氢原子,卤原子等;R3代表氢原子,卤原子等;R4和R5相同或不同,代表羟基等;R6和R7相同或不同,代表氢原子,具有1到6个碳原子的烷基基团等;以及R8代表具有3到7个碳原子的可选择取代的环烷基基团等。