You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-ethyl-1-[1-(3-fluoro-4-methoxyphenyl)ethyl]-3-spiro[2-oxabicyclo[3.2.0]heptane-7,1'-cyclopentane]-6-ylguanidine;hydroiodide ?
user
C22H33FIN3O2
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