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 [4-(2,4-difluorophenoxy)piperidin-1-yl]-(6-ethoxy-1H-indol-2-yl)methanone is given. What is its corresponding molecular formula?
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C22H22F2N2O3
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