Photocatalytic reaction of 4-cyanopyridine with tertiary amines
作者:Aleksey Yu. Vorob’ev
DOI:10.1007/s10593-019-02423-7
日期:2019.1
The reaction of 4-cyanopyridine with tertiary aliphatic amines photocatalyzed by fac-tris[2-phenylpyridinato-C2,N]iridium(III) complex was studied. The reactions led to arylation of the α-C–H bond of the amine to form the corresponding pyridin-4-yl derivatives along with unsubstituted pyridine.
Satzinger,G., Justus Liebigs Annalen der Chemie, 1960, vol. 638, p. 159 - 173
作者:Satzinger,G.
DOI:——
日期:——
Identification of protein binding partners of ALK-5 kinase inhibitors
作者:Rudy Ciayadi、Geoffrey F. Kelso、Mahesh K. Potdar、Simon J. Harris、Kelly L. Walton、Craig A. Harrison、Milton T.W. Hearn
DOI:10.1016/j.bmc.2013.08.038
日期:2013.11
We have investigated the binding characteristics of a potent member of the bis-ortho-substituted five-membered nitrogen heterocycle class of ALK-5 kinase inhibitors with lysates of cultured HEK-293 cells to identify protein binding partners of potential biological significance. An affinity chromatographic resin containing an immobilized ALK-5 kinase inhibitor, 2-phenyl-4-[3-(pyridin-2-yl)-1H-pyrazol-4-yl]pyridine, was used to capture specific proteins from the cell lysate. The soluble inhibitor was then used to specifically elute the proteins which selectively bound to the pharmacophore ligand structure. Application of 2-D SDS-PAGE analysis with positive and negative controls demonstrated the inhibitor bound several different proteins via selective molecular recognition processes. The structural features of the specifically eluted proteins were identified by peptide mass fingerprinting (PMF) methods and included proteins with structural, metabolic and chaperone functions. Furthermore, these PMF results identified the therapeutic target in various cancer treatment studies, HSP-70, as a potential high-affinity binding partner. These observations warrant examination of bis-ortho-substituted five-membered nitrogen heterocycles as dual ALK-5/HSP-70 inhibitors for anti-cancer drug development. (C) 2013 Elsevier Ltd. All rights reserved.