6205-72-7Relevant academic research and scientific papers
RuCl3-promoted amide formation from azides and thioacids
Fazio, Fabio,Wong, Chi-Huey
, p. 9083 - 9086 (2003)
Described here is the Ru(III)-promoted amide formation from azides and thioacids, which were shown not to form amides at room temperature in the absence of ruthenium. We belive that a complex formed by Ru(III) increases the reactivity of thiocarbonyl species and therefore reaction with azides occurs at room temperature, even when less reactive (electron rich and/or sterically hindered) azides are employed.
Radical-Mediated Acyl Thiol-Ene Reaction for Rapid Synthesis of Biomolecular Thioester Derivatives
Lynch, Dylan M.,McLean, Joshua T.,McSweeney, Lauren,Milbeo, Pierre,Scanlan, Eoin M.
supporting information, p. 4148 - 4160 (2021/08/24)
The thiol-ene ‘click’ reaction has emerged as a versatile process for carbon–sulfur bond formation with widespread applications in chemical biology, medicinal chemistry and materials science. Thioesters are key intermediates in a wide range of synthetic and biological processes and efficient methods for their synthesis are of considerable interest. Herein, we report the first examples of acyl-thiol-ene (ATE) for the synthesis of biomolecular thioesters, including peptide, lipid and carbohydrate derivatives. A key finding is the profound effect of the amino acid side chain on the outcome of the ATE reaction. Furthermore, radical generated thioesters underwent efficient S-to-N acyl transfer and desulfurisation to furnish ‘sulfur-free’ ligation products in an overall amidation process with diverse applications for chemical ligation and bioconjugation.
Chemoselective coupling of sugar oximes and α-ketoacids to glycosyl amides and N-glycopeptides
P?hner, Claudia,Ullmann, Vera,Hilpert, Ramona,Samain, Eric,Unverzagt, Carlo
supporting information, p. 2197 - 2200 (2014/04/17)
The reaction of unprotected sugar hydroxylamines and oximes with α-ketoacids leads to the chemoselective formation of glycosyl amides following the decarboxylative condensation pathway of Bode's ketoacid hydroxylamine (KAHA) ligation. Sugar oximes with gl
Synthesis and biological activity of some 1-N-substituted 2-acetamido-2-deoxy-beta-D-glycopyranosylamine derivatives and related analogs.
Paul,Bernacki,Korytnyk
, p. 99 - 115 (2007/10/02)
Several 1-N-substituted derivative [haloacetyl-, glycyl-, (dimethyl)amino-acetyl-, azidoacetyl-, trifluoroacetyl-, and trifluoromethylsulfonyl-] of 2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-beta-D-glucopyranosylamine (1) were synthesized as potential metabolic inhibitors of cellular-membrane glycoconjugates. Several fully acetylated derivatives were found to inhibit growth of mouse mammary adenocarcinoma TA3, leukemia L1210, or leukemia P-288 cells at 1-0.01 mM concentration in vitro. Some of these derivatives were less active after O-deacetylation. Analogs of 1 in which NH2-1 was replaced by OH- or OAc-1 were also active on the same cell systems. The growth-inhibitory activity was correlated with inhibition of the incorporation of 2-amino-deoxy-D-glucose and L-leucine into a macromolecular fraction.
