Kakde BN, Capota E, Kohler JJ, Tambar UK. Synthesis of Cell-Permeable
N-Acetylhexosamine 1-Phosphates.
J Org Chem 2021;
86:18257-18264. [PMID:
34618463 DOI:
10.1021/acs.joc.1c01781]
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Abstract
We recently reported the incorporation of diazirine photo-cross-linkers onto the O-GlcNAc posttranslational modification in mammalian cells, enabling the identification of binding partners of O-GlcNAcylated proteins. Unfortunately, the syntheses of the diazirine-functionalized substrates have exhibited inconsistent yields. We report a robust and stereoselective synthesis of cell-permeable GlcNAc-1-phosphate esters based on the use of commercially available bis(diisopropylamino)chlorophosphine. We demonstrate this approach for two diazirine-containing GlcNAc analogues, and we report the cellular incorporation of these compounds into glycoconjugates to support photo-cross-linking applications.
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