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A novel synthetic strategy for the construction of 4′-spironucleosides via cascade radical translocation cyclization of N-allyl-N-(2′-bromophenyl) amide moiety of 5′-carboxylic nucleosides and the N-propynyl analogues is described. The conformationally restricted nucleosides herein synthesized are of potentially biological interests.
A novel synthetic strategy for the construction of 4’-spironucleosides via cascade radical translocation cyclization of N-allyl-N- (2’-bromophenyl) amide moiety of 5’-carboxylic nucleosides and the N-propynyl analogues is described. nucleosidesneous synthetized are of potentially biological interests.