Journal
TETRAHEDRON-ASYMMETRY
Volume 21, Issue 17, Pages 2142-2152Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetasy.2010.06.022
Keywords
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Funding
- CSIR, New Delhi
- Ramanna Fellowship
- Department of Science and Technology, New Delhi [SR/S1/RFPC-06/2006]
- Bose Institute, Kolkata
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The chemical synthesis of a pentasaccharide and a hexasaccharide corresponding to the O-antigen of Escherichia coli O150 has been achieved using sequential glycosylation and [3+3] block glycosylation strategies. Suitably protected monosaccharide synthons have been prepared from the commercially available reducing sugars and then stereoselectively coupled to give the pentasaccharide and a hexasaccharide in excellent yields. 4-Methoxyphenyl and 2-(4-methoxyphenoxy) ethyl groups have been used as the anomeric-protecting groups in the target pentasaccharide and a hexasaccharide. respectively. (C) 2010 Elsevier Ltd. All rights reserved.
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