Synthesis of substituted terpyridine ligands for use in protein purification
摘要:
A number of 4,4 ''-disubstituted terpyridines bearing a 4'-thioethanamine linker, and regioisomers thereof, have been synthesised from 4-substituted picolinates. The substituted terpyridines were immobilised onto epoxy-activated Sepharose (TM) FF gel, creating functionalised solid supports for the fractionation of proteins-including antibodies-by mixed mode affinity chromatography. The metal chelating properties of the immobilised ligand render the stationary phase also amenable for use in immobilised metal-ion affinity chromatography (IMAC), and have been demonstrated with the purification of suitably tagged green fluorescent protein (GFP). (C) 2014 Published by Elsevier Ltd.
Synthesis of substituted terpyridine ligands for use in protein purification
摘要:
A number of 4,4 ''-disubstituted terpyridines bearing a 4'-thioethanamine linker, and regioisomers thereof, have been synthesised from 4-substituted picolinates. The substituted terpyridines were immobilised onto epoxy-activated Sepharose (TM) FF gel, creating functionalised solid supports for the fractionation of proteins-including antibodies-by mixed mode affinity chromatography. The metal chelating properties of the immobilised ligand render the stationary phase also amenable for use in immobilised metal-ion affinity chromatography (IMAC), and have been demonstrated with the purification of suitably tagged green fluorescent protein (GFP). (C) 2014 Published by Elsevier Ltd.
Isolation and Structure of a Hydrogen-bonded 2,2′:6′,2′′-Terpyridin-4′-one Acetic Acid Adduct
作者:Pas Florio、Campbell J. Coghlan、Chih-Pei Lin、Kei Saito、Eva M. Campi、W. Roy Jackson、Milton T. W. Hearn
DOI:10.1071/ch13571
日期:——
crystal structure of a key intermediate in the synthesis of 4′-substituted-terpyridines. Our findings confirm that the terpyridin-4′-one intermediate as generated from the condensation reaction of the corresponding triketone precursor with ammoniumacetate is isolated as a hydrogen-bonded adduct with acetic acid, and not, as previously reported, as the acetate salt of a protonated pyridine nitrogen. This