Fragment-based discovery of hydroxy-indazole-carboxamides as novel small molecule inhibitors of Hsp90
摘要:
Inhibitors of the Hsp90 molecular chaperone are showing considerable promise as potential molecular therapeutic agents for the treatment of cancer. Here we describe the identification of novel small molecular weight inhibitors of Hsp90 using a fragment based approach. Fragments were selected by docking, tested in a biochemical assay and the confirmed hits were crystallized. Information gained from X-ray structures of these fragments and other chemotypes was used to drive the fragment evolution process. Optimization of these high mu M binders resulted in 3-benzylindazole derivatives with significantly improved affinity and anti-proliferative effects in different human cancer cell lines. (C) 2012 Elsevier Ltd. All rights reserved.
INDAZOLE DERIVATIVES FOR THE TREATMENT OF HSP90-INDUCED DISEASES
申请人:Buchstaller Hans Peter
公开号:US20090197882A1
公开(公告)日:2009-08-06
Novel indazole derivatives of the formula (I), in which R
1
-R
3
have the meanings indicated in Claim (
1
), are HSP90 inhibitors and can be used for the preparation of a medicament for the treatment of diseases in which the inhibition, regulation and/or modulation of HSP90 plays a role.
Inhibitors of the Hsp90 molecular chaperone are showing considerable promise as potential molecular therapeutic agents for the treatment of cancer. Here we describe the identification of novel small molecular weight inhibitors of Hsp90 using a fragment based approach. Fragments were selected by docking, tested in a biochemical assay and the confirmed hits were crystallized. Information gained from X-ray structures of these fragments and other chemotypes was used to drive the fragment evolution process. Optimization of these high mu M binders resulted in 3-benzylindazole derivatives with significantly improved affinity and anti-proliferative effects in different human cancer cell lines. (C) 2012 Elsevier Ltd. All rights reserved.