Design, Synthesis, and StructureActivity Relationships for Chimeric Inhibitors of Hsp90
摘要:
Inhibition of the 90 kDa heat shock protein (Hsp90) family of molecular chaperones represents a promising new chemotherapeutic approach toward the treatment of several cancers. Previous studies have demonstrated that the natural products, radicicol and geldanamycin, are potent inhibitors of the Hsp90 N-terminal ATP binding site. The cocrystal structures of these molecules bound to Hsp90 have been determined, and through molecular modeling and superimposition of these ligands, hybrids of radicicol and geldanamycin have been designed. A series of macrocylic chimeras of radicicol and geldanamycin and the corresponding seco-agents have been prepared and evaluated for both antiproliferative activity and their ability to induce Hsp90-dependent client protein degradation.
Radester, a Novel Inhibitor of the Hsp90 Protein Folding Machinery
作者:Gang Shen、Brian S. J. Blagg
DOI:10.1021/ol050580a
日期:2005.5.1
and geldanamycin are potent inhibitors of the Hsp90proteinfoldingmachinery. Radester is a hybrid composed of radicicol's resorcinol ring and geldanamycin's quinone through an isopropyl ester. Radester was prepared, and the cytotoxicity of it and the corresponding hydroquinone were determined in MCF-7 breast cancer cells to be 13.9 and 7.1 microM, respectively. Protein degradation assays were performed
Macrocyclic compounds useful as inhibitors of kinases and HSP90
申请人:Winssinger Nicolas
公开号:US20080146545A1
公开(公告)日:2008-06-19
Disclosed are macrocyclic compounds of formulae I-V, which are analogs of the pochonin resorcylic acid lactones, and processes for the preparation of the compounds. The compounds disclosed are useful as inhibitors of kinases and Heat Shock Protein 90 (HSP 90). Also disclosed are pharmaceutical compositions comprising an effective kinase-inhibiting amount or an effective HSP90-inhibiting amount of the compounds and methods for the treatment of disorders that are mediated by kinases and HSP90.
MACROCYCLIC COMPOUNDS USEFUL AS INHIBITORS OF KINASES AND HSP90
申请人:WINSSINGER Nicolas
公开号:US20120077775A1
公开(公告)日:2012-03-29
Disclosed are macrocyclic compounds of formulae I-V, which are analogs of the pochonin resorcylic acid lactones, and processes for the preparation of the compounds. The compounds disclosed are useful as inhibitors of kinases and Heat Shock Protein 90 (HSP 90). Also disclosed are pharmaceutical compositions comprising an effective kinase-inhibiting amount or an effective HSP90-inhibiting amount of the compounds and methods for the treatment of disorders that are mediated by kinases and HSP90.
Macrocyclic prodrug compounds useful as therapeutics
申请人:Nexgenix Pharmaceuticals
公开号:EP2254880B1
公开(公告)日:2016-08-17
METHODS OF TREATING VIRAL INFECTION
申请人:Frydman Judith
公开号:US20100093824A1
公开(公告)日:2010-04-15
The present invention provides methods of treating an RNA viral infection, generally involving administering an agent that reduces the activity of a host cell protein required for maturation of a viral protein, where the emergence of variant virus resistant to the agent is reduced. The present invention further provides combination therapies for viral infection, involving administration of two or more agents that reduce the activity of a host cell protein required for maturation of a viral protein.