You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4-fluorophenyl)-[(2S,3S)-3-(1-methylpyrazol-4-yl)-2-(piperidin-1-ylmethyl)morpholin-4-yl]methanone .
user
C21H27FN4O2
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