Synthesis of carbasugar-containing non-glycosidically linked pseudodisaccharides and higher pseudooligosaccharides
作者:Ian Cumpstey
DOI:10.1016/j.carres.2009.09.008
日期:2009.11
This minireview covers synthetic methods towards carbasugar-containing non-glycosidicallylinked pseudodisaccharides or higher pseudooligosaccharides. Carbocyclic pyranose mimetics (saturated or unsaturated between C-5 and C-5a) are linked by ether, thioether or amine bridges to carbohydrates or other carbasugars.
Facile, Efficient, and Enantiospecific Syntheses of 1,1‘-<i>N</i>-Linked Pseudodisaccharides as a New Class of Glycosidase Inhibitors
作者:Tony K. M. Shing、Connie S. K. Kwong、Aries W. C. Cheung、Stanton H.-L. Kok、Zhifeng Yu、Jianmei Li、Christopher H. K. Cheng
DOI:10.1021/ja0470158
日期:2004.12.1
This article describes an efficient synthesis of a potent trehalase inhibitor, 1,1'-N-linked pseudodisaccharide 1 (consisting of two valienamines), in 14 steps with an overall yield of 12% and a first synthesis of 2 (consisting of two 2-epi-valienamines) in 15 steps with an overall yield of 24% from (-)-quinic acid. The synthesis involves a stereospecific palladium-catalyzed coupling reaction between