You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[[2-[(4aR,8aS)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]acetyl]amino]-N-cyclopentylbenzamide by IUPAC nomenclature, provide its molecular formula.
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C23H33N3O2
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