Optimization of Inhibitors of the Tyrosine Kinase EphB4. 2. Cellular Potency Improvement and Binding Mode Validation by X-ray Crystallography
摘要:
Inhibition of the tyrosine kinase erythropoietin-producing human hepatocellular carcinoma receptor B4 (EphB4) is an effective strategy for the treatment of solid tumors. We have previously reported a low nanomolar ATP-competitive inhibitor of EphB4 discovered in silico by fragment-based high-throughput docking combined with explicit solvent molecular dynamics simulations. Here we present a second generation of EphB4 inhibitors that show high inhibitory potency in both enzymatic and cell-based assays while preserving the appealing selectivity profile exhibited by the parent compound. In addition, respectable levels of antiproliferative activity for these compounds have been obtained. Finally, the binding mode predicted by docking and molecular dynamics simulations is validated by solving the crystal structures of three members of this chemical class in complex with the EphA3 tyrosine kinase whose ATP-binding site is essentially identical to that of EphB4.
[EN] COMPOUNDS, COMPOSITIONS, AND METHODS OF USE<br/>[FR] COMPOSÉS, COMPOSITIONS ET PROCÉDÉS D'UTILISATION
申请人:SAGE THERAPEUTICS INC
公开号:WO2020243027A1
公开(公告)日:2020-12-03
Described herein are compounds that act as CYP46A1 inhibitors, compositions comprising these compounds, and methods of their use into treating neurodegenerative diseases and the like, or a pharmaceutically active salt thereof. The present invention relates to compounds represented by the formula wherein each symbol is as defined in the specification, or a pharmaceutically active salt thereof.
Exploring Tandem Ruthenium-Catalyzed Hydrogen Transfer and S<sub>N</sub>Ar Chemistry
作者:Kurt Polidano、Benjamin G. Reed-Berendt、Anaïs Basset、Andrew J. A. Watson、Jonathan M. J. Williams、Louis C. Morrill
DOI:10.1021/acs.orglett.7b03441
日期:2017.12.15
A hydrogen-transfer strategy for the catalytic functionalization of benzylic alcohols via electronic arene activation, accessing a diverse range of bespoke diaryl ethers and aryl amines in excellent isolated yields (38 examples, 70% average yield), is reported. Taking advantage of the hydrogen-transfer approach, the oxidation level of the functionalized products can be selected by judicious choice
A novel α-halogen-substituted thiophene compound or a pharmacologically acceptable salt thereof, which has a potent LPA receptor-antagonist activity and is useful as a medicament is provided.