Unprotected thioglycosides were effective nucleophiles for Ni0‐catalyzed CS bond‐forming reaction with functionalized (hetero)aryl, alkenyl, and alkynyl halides. The functional‐group tolerance on the electrophilic partner was typically high and the anomeric selectivities of the thioglycosides were high in all cases. The efficiency of this general procedure was well‐demonstrated by the synthesis of
Glycosyl benzoates as novel substrates for glycosynthases
作者:Sabrina de Lorenzo、Lauriane Pillet、David Lim、Francesca Paradisi
DOI:10.1039/d3ob00979c
日期:——
The development of a procedure for the one-pot synthesis of glycosyl benzoates directly from unprotected sugars in aqueous media using 2-chloro-1,3-dimethylimidazolium chloride (DMC), thiobenzoic acid, and triethylamine is reported. These glycosyl donors are excellent substrates for wild-type and mutant glycosidases. β-Glucosyl benzoate was hydrolysed by the GH1 β-glucosidase derived from Halothermothrix
“Mix and match” auto-assembly of glycosyltransferase domains delivers biocatalysts with improved substrate promiscuity
作者:Damien Bretagne、Arnaud Pâris、David Matthews、Laëtitia Fougère、Nastassja Burrini、Gerd K. Wagner、Richard Daniellou、Pierre Lafite
DOI:10.1016/j.jbc.2024.105747
日期:2024.3
in dedicated domains. Here, we have used this selective binding feature to design an engineering process to generate chimeric glycosyltransferases that combine auto-assembled domainsfrom two different GT-B enzymes. Our approach enabled the generation of a stable dimer with broader substrate promiscuity than the parent enzymes that were related to relaxed interactions between domains in the dimeric