You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[[4-(4-fluorophenyl)oxan-4-yl]methyl]-2-methyl-3-[[4-(trifluoromethyl)phenyl]methyl]guanidine into its molecular formula.
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C22H25F4N3O
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