You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2S)-2-(2-fluorophenyl)-2-hydroxyethyl]-3-[(3R)-5-oxo-1-propan-2-ylpyrrolidin-3-yl]urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H22FN3O3
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