You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-methylpropyl]-3-nitro-4-(1-pyridin-2-ylethylamino)benzamide into its molecular formula.
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C27H31N5O3
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