You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[4-[[(2R,6R)-6-cyclopropyl-1,4-dioxan-2-yl]methoxy]phenyl]-2-oxo-6-(trifluoromethyl)-1H-pyridine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C21H21F3N2O5
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