You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-amino-1-[(2R,3R,4S,5S)-5-ethyl-3,5-difluoro-4-methyloxolan-2-yl]pyrimidin-2-one .
user
C11H15F2N3O2
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