You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-N-[(3,5-dimethyl-1-propylpyrazol-4-yl)methyl]-2-(4-fluorophenyl)morpholine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H27FN4O2
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