Probing replacement of pyrophosphate via click chemistry; synthesis of UDP-sugar analogues as potential glycosyl transferase inhibitors
摘要:
A series of potential UDP-sugar mimics were readily synthesised by copper(I) catalysed modified Huisgen cycloaddition of the corresponding alpha-propargyl glycosides with 5-azido uridine in aqueous solution. None of the compounds accessed displayed significant inhibitory activity at concentrations of up to 4.5 mM in an assay against bovine milk beta-1,4-galactosyltransferase. (C) 2009 Elsevier Ltd. All rights reserved.
In nature, proteins self‐assemble into various structures with different dimensions. To construct these nanostructures in laboratories, normally proteins with different symmetries are selected. However, most of these approaches are engineering‐intensive and highly dependent on the accuracy of the protein design. Herein, we report that a simple nativeprotein LecA assembles into one‐dimensional nanoribbons
Novel glycoconjugated squaraine dyes for selective optical imaging of cancer cells
作者:M. Shimi、Vandana Sankar、M. K. Abdul Rahim、P. R. Nitha、Suresh Das、K. V. Radhakrishnan、K. G. Raghu
DOI:10.1039/c6cc10282d
日期:——
Novel glycoconjugated squaraine dyes were synthesized, which exhibited excellent internalization in tumor cells and are potent fluorogenic imaging probes for tumor selective opticalimaging.
Supramolecular design of a bicomponent topochemical reaction between two non-identical molecules
作者:Baiju P. Krishnan、Shyama Ramakrishnan、Kana M. Sureshan
DOI:10.1039/c2cc37067k
日期:——
We report the first design of a topochemical reaction between two non-identical reactants using a supramolecular chemistry approach. A coassembly of two sugar-based organogelators with complementary reacting motifs, viz. azides and alkynes, undergoes topochemical Huisgen reaction between them.
Nucleoside triphosphate mimicry: a sugar triazolyl nucleoside as an ATP-competitive inhibitor of B. anthracis pantothenate kinase
作者:Andrew S. Rowan、Nathan I. Nicely、Nicola Cochrane、Wjatschesslaw A. Wlassoff、Al Claiborne、Chris J. Hamilton
DOI:10.1039/b909729e
日期:——
The synthesis of a library of nucleoside triphoshate mimetics is described where the Mg2+ chelated triphosphate sidechain is replaced by an uncharged methylene-triazole linked monosaccharide sidechain. The compounds have been evaluated as inhibitors of Bacillus anthracispantothenate kinase and a competitive inhibitor has been identified with a Ki that is 3-fold lower than the Km value of ATP.