758685-64-2Relevant academic research and scientific papers
Suzuki-Miyaura Diversification of Amino Acids and Dipeptides in Aqueous Media
Willemse, Tom,Van Imp, Karolien,Goss, Rebecca J. M.,Van Vlijmen, Herman W. T.,Schepens, Wim,Maes, Bert U. W.,Ballet, Steven
, p. 2055 - 2070 (2015/11/24)
The Suzuki-Miyaura derivatisation of free amino acids, peptides and proteins is an attractive area with considerable potential utility for medicinal chemistry and chemical biology. Here we report the modification of unprotected and Boc-protected aromatic amino acids and dipeptides in aqueous media, enabling heteroarylation and vinylation. We systematically investigate the impact of the peptide backbone and adjacent amino acid residues upon the reaction. Our studies reveal that although asparagine and histidine hinder the reaction, by utilising dppf, a ferrocene-based bidentate phosphine ligand, cross coupling of halophenylalanine or halotryptophan adjacent to such a residue could be enabled. Our studies reveal dppf to have good compatibility with all unprotected, proteinogenic amino acid side chains.
Identification of new peptide amides as selective cathepsin L inhibitors: The first step towards selective irreversible inhibitors?
Torkar, Ana,Lenar?i?, Brigita,Lah, Tamara,Dive, Vincent,Devel, Laurent
supporting information, p. 2968 - 2973 (2013/06/27)
A small library of peptide amides was designed to profile the cathepsin L active site. Within the cathepsin family of cysteine proteases, the first round of selection was on cathepsin L and cathepsin B, and then selected hits were further evaluated for binding to cathepsin K and cathepsin S. Five highly selective sequences with submicromolar affinities towards cathepsin L were identified. An acyloxymethyl ketone warhead was then attached to these sequences. Although these original irreversible inhibitors inactivate cathepsin L, it appears that the nature of the warhead drastically impact the selectivity profile of the resulting covalent inhibitors.
