You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(dimethylamino)-N-[(4-fluorophenyl)methyl]-4-methyl-6-[(3R)-3-methylmorpholin-4-yl]pyridine-3-carboxamide into its molecular formula.
user
C21H27FN4O2
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