Abstract
Bicyclonucleosides bearing a 5-deoxy-5-N-hydroxyamino-3,N 5-(1,1-ethano)-β-o-furanosyl sugar moiety (15–18) have been prepared by glycosidation of the corresponding bicyclosugars obtained via an intramolecular reverse Cope elimination. The configuration of the asymmetric carbon of the 1,1-ethano bridge is the most important factor directing the conformation of the N-hydroxypyrrolidine ring and its invertomers ratio as shown by variable temperature H NMR experiments.
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