Title : Intramolecular 1,8- versus 1,6-hydrogen atom transfer between pyranose units in a (1-->4)-disaccharide model promoted by alkoxyl radicals. Conformational and stereochemical requirements.

Pub. Date : 2007 Apr 26

PMID : 17407301






1 Functional Relationships(s)
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1 Models with alpha-d-Glcp-(1-->4)-beta-d-Glcp or alpha-l-Rhamp-(1-->4)-alpha-d-Galp skeletons lead exclusively to the abstraction of H-C-5" and the formation, through a nine-membered transition state, of a 1,3,5-trioxocane ring system in a stable boat-chair conformation. alpha-l-rhamp galanin like peptide Homo sapiens