“…Moser and co-workers 184 developed a related enzymecatalyzed acetylation for the synthesis of a carbocyclic 2-deoxyribose derivative (Scheme 23). The trityl-protected precursor (()-274, readily available from cyclopentadiene via 1,4-addition of singlet oxygen, 185 hydroformylation, reduction, and tritylation, was subjected to enzymatic acyl transfer with Chromobacterium Viscosum lipase, to give 2-deoxy-R-D-ribocarbafuranose derivative 275, with high enantioselectivity.…”