Abstract
Abstract A novel procedure for regiospecific O-allylation of pyrimidine ribonucleosides is reported by using Pd(PPh3)4–allyl ethyl carbonate reagent to synthesize 2′-O-allyluridine and 2′-O-allylcytidine. 3-N-allylation of the pyrimidine ring is prevented by protection of uridine imide function by 4-O-(2,5-dimethylphenyl) group which can be transformed to 4-oxo function of uridine or exocyclic amino function of cytidine.
Published Version
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