You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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2-amino-1-ethyl-7-[4-[4-[(1-ethylpyrrolidin-2-yl)methylamino]-4-oxobutyl]phenyl]-N-methyl-4-oxo-1,8-naphthyridine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C29H38N6O3
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