UDP-GlcNAc Analogues as Inhibitors of<i>O</i>-GlcNAc Transferase (OGT): Spectroscopic, Computational, and Biological Studies
作者:Mattia Ghirardello、Daniela Perrone、Nicola Chinaglia、David Sádaba、Ignacio Delso、Tomas Tejero、Elena Marchesi、Marco Fogagnolo、Karim Rafie、Daan M. F. van Aalten、Pedro Merino
DOI:10.1002/chem.201801083
日期:2018.5.17
series of glycomimetics of UDP‐GlcNAc, in which the β‐phosphate has been replaced by either an alkyl chain or a triazolyl ring and the sugar moiety has been replaced by a pyrrolidine ring, has been synthesized by the application of different click‐chemistryprocedures. Their affinities for human O‐GlcNAc transferase (hOGT) have been evaluated and studied both spectroscopically and computationally. The binding
active five-membered cyclic nitrones are readily obtained in a one-pot procedure via the organocatalytic Michael addition of aldehydes to nitroolefins and in situ reductive cyclization. Application of the methodology to the synthesis of tricyclic compounds through intramolecular1,3-dipolar cycloaddition reactions (DFT calculations have also been performed) is also demonstrated. All the reactions were