You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1R,4Z,5S)-4-[(4-fluorophenyl)methylidene]-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-one by IUPAC nomenclature, provide its molecular formula.
user
C17H19FO2
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