You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-amino-5-fluoro-1-[(2R,3S,4R,5R)-3-fluoro-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one .
user
C9H11F2N3O5
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