| 摘要 |
Nucleotide analogues having the general formula (I) and pharmaceutically acceptable derivatives: wherein n is 0 or an integer; X is O or S, CH2, CH-halogen, CH-N3, or C=CH2; Q and U are independently selected from: O, S, and CH(Ra) wherein Ra is hydrogen, OH, halogen, N3, NH2, SH, carboxyl, C1-6 alkyl or Ra is CH2(Rb) wherein Rb is hydrogen, OH, SH, NH2, C1-6 alkyl or carboxyl; or both Q and U are CH when Q and U are linked by a double bond; Z is selected from: O, a C1-6 alkoxy, a C1-6 thioalkyl, a C1-6 aminoalkyl, (CH2)m wherein m is 0 or an integer, and N(Rc)2 wherein both Rc are independently hydrogen or a C1-6 alkyl; and R2 is a purine or pyrimidine base or an analogue or derivative thereof. Members of this series of analogues possess anti-viral activity.
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