You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-[[5-bromo-2-[(2-chloro-4-fluorophenyl)methoxy]phenyl]methyl]-3-pyridin-2-yloxypropan-1-amine is given. What is its corresponding molecular formula?
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C22H21BrClFN2O2
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