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 7-(4-aminobutan-2-yloxy)-1-(4-chlorophenyl)-6-methoxy-2-(4-methoxyphenyl)-1,4-dihydroisoquinolin-3-one is given. What is its corresponding molecular formula?
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C27H29ClN2O4
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