A general synthetic approach to 2,3-unsaturated glycosides connecting with nucleosides involving Ferrier rearrangements of glycals is discussed. The new compounds were identified by NMR and MS (HRFAB(+)). The hydroxylation of the resulting 2,3-unsaturated glycosides was completed using OsO4 to give 5'-O-glycosylnucleosides in good yield. (C) 1999 Elsevier Science Ltd. All rights reserved.
A general synthetic approach to 2,3-unsaturated glycosides connecting with nucleosides involving Ferrier rearrangements of glycals is discussed. The new compounds were identified by NMR and MS (HRFAB(+)). The hydroxylation of the resulting 2,3-unsaturated glycosides was completed using OsO4 to give 5'-O-glycosylnucleosides in good yield. (C) 1999 Elsevier Science Ltd. All rights reserved.