| 摘要 |
The present invention provides a six membered, at least partially unsaturated, carbocyclic nucleoside compound, including the (-) enantiomer, the (+) enantiomer, and pharmaceutically acceptable salts and esters thereof. The compounds are represented by formula (I), wherein Z represents one double bond in the six membered carbocylic ring, B is a heterocyclic ring, such as a pyrimidine or purine base, X is an azido, F or OR<SUP>2</SUP>, R<SUP>1 </SUP>and R<SUP>2 </SUP>are the same or different and represent the same or different protecting groups, hydrogen, alkyl, alkenyl, acyl or phosphate moieties, and wherein the alkyl moiety is a saturated, optionally unsubstituted hydrocarbon having from 1 to 20 carbon atoms, the alkenyl moiety is an unsaturated congener of the alkyl group, and the acyl moiety is analkanoyl or aroyl moiety.
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