1 and biological 2 studies of the carbocyclic analogues of nucleosides.(-)-Aristeromycin and (-)-neplanocin A are natural representatives of these compounds. Yet, only a few enantiomerically pure synthetic carbocyclic nucleoside analogues have been obtained through chemoenzymatic 3 approaches, 4 multistep synthesis, and by 5 chromatographic or enzymatic 6 resolution of racemic intermediates, nucleosides or nucleotides. The key ...