Linker Influence on the Stereochemical Outcome of Glycosylations Utilizing Solid Support-Bound Glycosyl Phosphates
摘要:
[GRAPHICS]Glycosyl phosphates can be readily accessed on a solid support via a three-step procedure from support-bound glycals. These resin-bound glycosyl phosphates were successfully used as glycosylating agents for coupling with a series of nucleophiles. The stereochemical outcome of disaccharide formation was dependent on the nature of the linker connecting the saccharide to the polymer. Interestingly, other glycosyl donors such as thioglycosides and trichloroacetimidates did not exhibit such a dependence, indicating a different reaction mechanism for glycosylation.
Linker Influence on the Stereochemical Outcome of Glycosylations Utilizing Solid Support-Bound Glycosyl Phosphates
摘要:
[GRAPHICS]Glycosyl phosphates can be readily accessed on a solid support via a three-step procedure from support-bound glycals. These resin-bound glycosyl phosphates were successfully used as glycosylating agents for coupling with a series of nucleophiles. The stereochemical outcome of disaccharide formation was dependent on the nature of the linker connecting the saccharide to the polymer. Interestingly, other glycosyl donors such as thioglycosides and trichloroacetimidates did not exhibit such a dependence, indicating a different reaction mechanism for glycosylation.
Linker Influence on the Stereochemical Outcome of Glycosylations Utilizing Solid Support-Bound Glycosyl Phosphates
作者:Diana K. Hunt、Peter H. Seeberger
DOI:10.1021/ol026276o
日期:2002.8.1
[GRAPHICS]Glycosyl phosphates can be readily accessed on a solid support via a three-step procedure from support-bound glycals. These resin-bound glycosyl phosphates were successfully used as glycosylating agents for coupling with a series of nucleophiles. The stereochemical outcome of disaccharide formation was dependent on the nature of the linker connecting the saccharide to the polymer. Interestingly, other glycosyl donors such as thioglycosides and trichloroacetimidates did not exhibit such a dependence, indicating a different reaction mechanism for glycosylation.