An Oxidation and Ring Contraction Approach to the Synthesis of (±)-1-Deoxynojirimycin and (±)-1-Deoxyaltronojirimycin
作者:Sharan K. Bagal、Stephen G. Davies、James A. Lee、Paul M. Roberts、Angela J. Russell、Philip M. Scott、James E. Thomson
DOI:10.1021/ol902533b
日期:2010.1.1
3SR)-N(1)-benzyl-2-chloromethyl-3-benzyloxy-4,5-epoxypiperidine by simple modification of the reaction conditions. Epoxide ring opening, functional group interconversion, and deprotection allow the synthesis of (±)-1-deoxynojirimycin and (±)-1-deoxyaltronojirimycin.
Syntheses of the Enantiomers of 1-Deoxynojirimycin and 1-Deoxyaltronojirimycin via Chemo- and Diastereoselective Olefinic Oxidation of Unsaturated Amines
作者:Sharan K. Bagal、Stephen G. Davies、James A. Lee、Paul M. Roberts、Philip M. Scott、James E. Thomson
DOI:10.1021/jo101756g
日期:2010.12.3
as the major product and as a single diastereoisomer after chromatography. Elaboration of this highly functionalized intermediate via ringcontraction to (2S,3R,4S,5S,1′R)-N(1)-benzyl-2-chloromethyl-3-benzyloxy-4,5-epoxypiperidine followed by regioselective epoxidering opening, functional group manipulation, and deprotection gave (+)-1-deoxyaltronojirimycin. Alternatively, resolution of (RS,RS)-N(1