Document Detail


Synthesis of L-daunosamine and L-ristosamine glycosides via photoinduced aziridination. Conversion to thioglycosides for use in glycosylation reactions.
MedLine Citation:
PMID:  17025295     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Application of photoinduced acylnitrene aziridination to the syntheses of L-daunosamine and L-ristosamine glycosides is reported. Photoreaction of methyl 4-O-azidocarbonyl-2,3,6-trideoxy-L-hex-2-enopyranosides, followed by aziridine opening, leads to 3-amino-3-N-,4-O-carbonyl-2,3,6-trideoxy precursors to the aminosugar methyl glycosides. Conversion of these precursors to their thioglycoside analogues followed by N-acetylation of the carbamate moiety permits high yielding and, in some cases, stereoselective glycosylations using the 1-benzenesulfinylpiperidine-triflic anhydride activation method developed by Crich and co-workers. Glycosylations involving activation with N-iodosuccinimide and silver triflate were also successful, but the stereoselectivities of these reactions in general were lower.
Authors:
Matthew T Mendlik; Peng Tao; Christopher M Hadad; Robert S Coleman; Todd L Lowary
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  The Journal of organic chemistry     Volume:  71     ISSN:  0022-3263     ISO Abbreviation:  J. Org. Chem.     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-10-09     Completed Date:  2007-08-07     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  2985193R     Medline TA:  J Org Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8059-70     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA.
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MeSH Terms
Descriptor/Qualifier:
Hexosamines / chemical synthesis*
Grant Support
ID/Acronym/Agency:
AI44045/AI/NIAID NIH HHS
Chemical
Reg. No./Substance:
0/Hexosamines; 26548-47-0/daunosamine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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