You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7R)-2-(4-fluoro-2-methylbenzoyl)-N,8-dimethyl-5-oxa-2,8-diazaspiro[3.5]nonane-7-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H22FN3O3
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