| 摘要 |
The present invention provides a thionucleoside-S-nitrosyl derivative of the following Formula I or a salt thereof: [wherein R1 represents ribose, 2-deoxyribose or a derivative of either, and R2 represents a hydrogen atom, an amino group, a hydroxyl group, a halogen atom, a R3-oxy group or a R3-amino group (wherein R3 represents an optionally substituted C1-15 alkyl group or an optionally substituted C1-15 acyl group)].
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