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-(3-chloro-4-fluorophenyl)-2-methyl-3-(1-methyl-8H-cyclohepta[b]pyrrol-3-yl)-1-oxo-3,4-dihydroisoquinoline-4-carboxamide is given. What is its corresponding molecular formula?
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C27H23ClFN3O2
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