Structure–Activity Relationship in a Purine-Scaffold Compound Series with Selectivity for the Endoplasmic Reticulum Hsp90 Paralog Grp94
摘要:
Grp94 is involved in the regulation of a restricted number of proteins and represents a potential target in a host of diseases, including cancer, septic shock, autoimmune diseases, chronic inflammatory conditions, diabetes, coronary thrombosis, and stroke. We have recently identified a novel allosteric pocket located in the Grp94 N-terminal binding site that can be used to design ligands with a 2-log selectivity over the other Hsp90 paralogs. Here we perform extensive SAR investigations in this ligand series and rationalize the affinity and paralog selectivity of choice derivatives by molecular modeling. We then use this to design 18c, a derivative with good potency for Grp94 (IC50 = 0.22 mu M) and selectivity over other paralogs (>100- and 33-fold for Hsp90 alpha/beta and Trap-1, respectively). The paralog selectivity and target-mediated activity of 18c was confirmed in cells through several functional readouts. Compound 18c was also inert when tested against a large panel of kinases. We show that 18c has biological activity in several cellular models of inflammation and cancer and also present here for the first time the in vivo profile of a Grp94 inhibitor.
The present invention relates to HSP90 inhibitors and their use in the treatment of cell proliferative diseases such as cancer. The said derivatives may further act as HDAC inhibitors.
The present invention relates to HSP90 inhibitors containing fused amino pyridine core that are useful as inhibitors of HSP90 and their use in the treatment of HSP90 related diseases and disorders such as cancer, an autoimmune disease, or a neurodegenerative disease.
FUSED AMINO PYRIDINES FOR THE TREATMENT OF BRAIN TUMORS
申请人:Cai Xiong
公开号:US20100184801A1
公开(公告)日:2010-07-22
The present invention relates to the use of compounds with fused amino pyridine core for the treatment of malignancies associated with brain and lung. The oral administration of compounds of the instant application results in effective brain penetration and provides for non-intrusive treatment of brain and lung tumors.
Fused Amino Pyridines for the Treatment of Lung Cancer
申请人:Curis, Inc.
公开号:US20160317508A1
公开(公告)日:2016-11-03
The present invention relates to the use of compounds with fused amino pyridine core for the treatment of malignancies associated with brain and lung. The oral administration of compounds of the instant application results in effective brain penetration and provides for non-intrusive treatment of brain and lung tumors.
C,O-Chelates of the Trifluoroacetylacetonate Dianion with Palladium(II). Molecular Structure of [Pd(tfac(2–)-<i>C</i>,<i>O</i>)(PPh<sub>3</sub>)(2,6-Me<sub>2</sub>-py)]
Reactions of bis(trifluoroacetylacetonato)palladium(II), [Pd(tfac)2], with tertiary phosphines followed by pyridine or its derivatives afforded a series of the [Pd(tfac(2–)-C,O)LL′]-type complexes which contain a C,O-chelating trifluoroacetylacetonate dianion and a couple of tertiary phosphine and/or heterocyclic nitrogen base ligands (L and L′). Their structures in solution were studied by 1H, 13C, 19F