Journal
CARBOHYDRATE RESEARCH
Volume 345, Issue 7, Pages 948-955Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2010.02.004
Keywords
Heparin; Iduronic acid; Oligosaccharides; Carbohydrates; Total synthesis
Funding
- ETH Zurich
- Swiss National Science Foundation (SNF)
- Max-Planck Gesellschaft
- Novartis
- Fonds der Chemischen Industrie
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A divergent de novo synthesis of six differentially protected L-iduronic acid thioglycosides from a common advanced precursor is described. The key step of this synthetic sequence is the stereoselective elongation of dithioacetal protected C5-dialdehyde 11 via a highly diastereoselective MgBr(2)center dot OEt(2)-mediated cyanation. Orthogonally protected L-iduronic acid building blocks obtained by this synthesis are expected to facilitate access to differentially sulfated heparins for microarray-based structure-activity relationship studies. (C) 2010 Elsevier Ltd. All rights reserved.
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