| 摘要 |
Antiviral and antitumor compounds are disclosed of general formula: <IMAGE> wherein Z is H, OR' or NH2, wherein R' is H, (C1-C4)-alkyl, aryl, CHO, (C1-C16)alkanoyl or O=P(OH)2, Y is CH or N, and X is selected from the group consisting of H, N(R2), SR, OR' or halogen, wherein R is H, lower-(C1-C4)alkyl, aryl or mixtures thereof, and the pharmaceutically-acceptable salts thereof.
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