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 2-[2-[(3aR,7R,7aR)-7-hydroxy-7-pyridin-3-yl-3,3a,4,5,6,7a-hexahydro-1H-isoindol-2-yl]-2-oxoethyl]phthalazin-1-one is given. What is its corresponding molecular formula?
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C23H24N4O3
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