Synthesis of bicyclo[3.1.0]hexane derivatives as conformationally restricted analogues of beta-arabinofuranosyl and alpha-galactofuranosyl rings. 2008

Jing Li, and Todd L Lowary
Alberta Ingenuity Centre for Carbohydrate Science and Department of Chemistry, Gunning-Lemieux Chemistry Centre, University of Alberta, Edmonton, AB T6G 2G2, Canada.

A route for the synthesis of bicyclo[3.1.0]hexane-derived conformationally restricted analogues of beta-arabinofuranosyl and alpha-galactofuranosyl rings is described. Advantage is taken of the pseudo-enantiomeric relationship between the two ring systems to develop a route that provides both targets from a single precursor. Key steps include a base-promoted ring contraction of an epoxy ketone obtained from cyclohexane-1,4-dione to give the bicyclo[3.1.0]hexane ring system and a late stage resolution involving esterification with O-acetyl-(S)-mandelic acid.

UI MeSH Term Description Entries
D009005 Monosaccharides Single chain carbohydrates that are the most basic units of CARBOHYDRATES. They are typically colorless crystalline substances with a sweet taste and have the same general formula CnH2nOn. Monosaccharide,Simple Sugar,Simple Sugars,Sugar, Simple,Sugars, Simple
D005697 Galactosides Glycosides formed by the reaction of the hydroxyl group on the anomeric carbon atom of galactose with an alcohol to form an acetal. They include both alpha- and beta-galactosides.
D001643 Bridged Bicyclo Compounds Saturated alicyclic hydrocarbon molecules consisting of two rings that have two non-adjacent atoms in common. Bicyclo Compounds,Bicyclo Compounds, Bridged
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D019086 Bridged Bicyclo Compounds, Heterocyclic Heterocyclic compounds that contain two rings that share two non-adjacent atoms in common. Bicyclo Compounds, Heterocyclic,Heterocyclic Cpds, Bicyclic,Bicyclic Heterocyclic Compounds,Heterocyclic Bicyclo Compounds,Bicyclic Heterocyclic Cpds,Heterocyclic Compounds, Bicyclic

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