Nanomole-Scale Assignment of Configuration for Primary Amines Using a Kinetic Resolution Strategy
作者:Shawn M. Miller、Renzo A. Samame、Scott D. Rychnovsky
DOI:10.1021/ja310620c
日期:2012.12.19
The absolute configurations of primary amines were assigned using a kinetic resolution strategy with Mioskowski's enantioselective 1-(R,R) and 2-(S,S) acylating agents. A simple mnemonic was developed to determine the configuration. A pseudoenantiomeric pair of reagents, 1-(R,R) and 2-(S,S)-d(3), was prepared and used to assay primary amines on a micromolar scale. The ESI-MS readout of the resulting
Stereospecific attachment of carbohydrates to amino acid derivatives using β-glucosidase and β-xylosidase
作者:Nicholas J. Turner、Matthew C. Webberley
DOI:10.1039/c39910001349
日期:——
Both β-glucosidase from almonds and β-xylosidase from Escherichia coli have been used to catalyse the synthesis of β-glucosides and β-xylosides of amino acid derivatives, respectively.
An improved strategy for the stereoselective synthesis of glycosides using glycosidases as catalysts
作者:Anne Baker、Nicholas J. Turner、Matthew C. Webberley
DOI:10.1016/s0957-4166(00)80398-5
日期:1994.12
A alternative strategy for the synthesis of glycosides, using glycosidase enzymes, has been developed. In contrast to previous procedures, this new method uses limiting amounts of the acceptor alcohol substrate in combination with an excess of the glycosyl donor. Using this procedure, a series of mono- and disaccharides have been prepared.