You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 6-[[1-(2-fluorophenyl)-5-oxopyrrolidine-3-carbonyl]oxymethyl]-4-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H22FN3O6
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