A novel synthesis of protected glucose intermediates.
摘要:
The 1,2,4,6-Tetra-O-pivaloyl-D-gluco-pyranose 3 and 1,2,3,6-Tetra-O-pivaloyl-D-glucopyranose 4 have been prepared in one step from anhydrous glucose and pivaloyl chloride. These new intermediates can be converted into the corresponding esters, or used in the synthesis of a disaccharide in good yield. Thus, 2,3,6-Tri-O-pivaloyl-gluco-pyranose 10 can be prepared from 4, and used for preparation of beta-gluco derivatives via the corresponding trichloroacetimidate 12.
Synthesis and utilization of saccharide intermediates
摘要:
A new method has been developed for preparation of partially pivaloylated saccharides in one step from readily available starting materials. These intermediates were used in the synthesis of disaccharides and a glucosteroid.