Synthesis of via a tandem sharpless asymmetric dihydroxylation/lipase-catalyzed transesterification
摘要:
An enantioselective synthesis of the trideoxy sugar 4-O-acetyl-L-rhodinopyranose (7) is described. A key feature of the synthetic strategy is a Sharpless asymmetric dihydroxylation followed by a lipase-mediated mono-esterification of the resultant diol (3-->4-->6).
The synthesis and characterization of highly challenging 2,3,6-trideoxy sugar nucleotides were described for the first time. The study of their hydrolysis kinetics in aqueous buffers provided insight into their application as glycosyl donors. (C) 2011 Elsevier Ltd. All rights reserved.