Process for the stereoselective preparation of .beta.-fucopyranosyl
申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US05371203A1
公开(公告)日:1994-12-06
The invention relates to a process for the stereoselective preparation of .beta.-L-fucopyranosyl phosphates via the trichloroacetimidates of protected L-fucose and the synthesis and purification of very pure GDP-fucose from the .beta.-L-fucopyranosyl phosphates.
Synthesis of glycosyl phosphates from acetylated glycosyl nitrates
作者:Petr A. Illarionov、Vladimir I. Torgov、Ian C. Hancock、Vladimir N. Shibaev
DOI:10.1016/s0040-4039(99)00698-x
日期:1999.5
Acetylated α-glycosyl nitrates were efficiently converted under mild conditions into protected β-glycosyl phosphates by treatment with cesium dibenzyl phosphate or into thermodynamically more stable α-glycosyl phosphate derivatives upon interaction with cesium diphenyl phosphate. These reactions were found to be applicable both to 2-azido-2,6-dideoxy- and 2-azido-2-deoxygalactopyranosyl nitrates as
The use of cesium dibenzyl and diphenyl phosphates for stereoselective synthesis of glycosyl phosphate derivatives
作者:P. A. Illarionov、V. I. Torgov、V. N. Shibaev
DOI:10.1007/bf02494931
日期:2000.11
Peracetates of β-glycosyl dibenzylphosphates are formed efficiently in the reaction of cesium dibenzylphosphate with peracetyl-α-glycosyl nitrates derived froml-fucopyranose,d-galactopyranose, and 2-azido-2-deoxy-d-galactopyranose or with tri-O-acetyl-α-l-fucopyranosyl bromide. On the contrary, the reaction of the above-mentioned glycosyl nitrates with cesium diphenyl phosphate leads to thermodynamically
Verfahren zur stereoselektiven Herstellung von beta-Fucopyranosylphosphaten und sehr reiner GDP-Fucose
申请人:MERCK PATENT GmbH
公开号:EP0502298A2
公开(公告)日:1992-09-09
Die Erfindung betrifft ein Verfahren zur stereoselektiven Herstellung von β-L-Fucopyranosyl-phosphaten über die Trichloracetimidate der geschützten L-Fucose und die Synthese und Aufreinigung von sehr reiner GDP-Fucose aus den β-L-Fucopyranosyl-phosphaten.