The invention provides compounds of formula I
and pharmaceutically acceptable salts thereof.
The formula I compounds inhibit tyrosine kinase activity thereby making them useful as anticancer agents and for the treatment of Alzheimer's Disease.
Collagen labelling with an azide-proline chemical reporter in live cells
作者:Beatrice Amgarten、Rakesh Rajan、Nuria Martínez-Sáez、Bruno L. Oliveira、Inês S. Albuquerque、Roger A. Brooks、David G. Reid、Melinda J. Duer、Gonçalo J. L. Bernardes
DOI:10.1039/c4cc07974d
日期:——
Biosynthetic incorporation of an azide-proline chemical reporter into collagen allows selective imaging in live foetal ovine osteoblasts using a strain-promoted [3+2] azide–alkyne cycloaddition reaction.
Solid-phase synthesis of an apoptosis-inducing tetrapeptide mimicking the Smac protein
作者:Sebastian T. Le Quement、Mette Ishoey、Mette T. Petersen、Pernille M. Simonsen、Nanna S. Holck、Thomas E. Nielsen
DOI:10.1016/j.tetlet.2011.10.028
日期:2011.12
An approach for the solid-phase synthesis of apoptosis-inducing Smac peptidomimetics is presented. Using a Rink linker strategy, tetrapeptides mimicking the N-4-terminal residue of the Smac protein [(N-Me)AVPF sequence] were synthesized on PEGA resin in excellent purities and yields. Following two synthetic routes, a known tetrapeptide, incorporating a substituted proline, previously shown to exhibit excellent biological activity in vitro as well as low toxicity, was synthesized effectively on a solid support. (C) 2011 Elsevier Ltd. All rights reserved.
Discovery of Small-Molecule Interleukin-2 Inhibitors from a DNA-Encoded Chemical Library
AbstractLibraries of chemical compounds individually coupled to encoding DNA tags (DNA‐encoded chemical libraries) hold promise to facilitate exceptionally efficient ligand discovery. We constructed a high‐quality DNA‐encoded chemical library comprising 30 000 drug‐like compounds; this was screened in 170 different affinity capture experiments. High‐throughput sequencing allowed the evaluation of 120 million DNA codes for a systematic analysis of selection strategies and statistically robust identification of binding molecules. Selections performed against the tumor‐associated antigen carbonic anhydrase IX (CA IX) and the pro‐inflammatory cytokine interleukin‐2 (IL‐2) yielded potent inhibitors with exquisite target specificity. The binding mode of the revealed pharmacophore against IL‐2 was confirmed by molecular docking. Our findings suggest that DNA‐encoded chemical libraries allow the facile identification of drug‐like ligands principally to any protein of choice, including molecules capable of disrupting high‐affinity protein–protein interactions.