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 3-(4-methoxyphenyl)-1-[(4R)-4-(4-propan-2-ylpiperazin-1-yl)-1-oxa-9-azaspiro[5.5]undecan-9-yl]propan-1-one is given. What is its corresponding molecular formula?
user
C26H41N3O3
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