You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[1-[2-[[cyclopropyl(phenyl)methyl]amino]-2-oxoethyl]piperidin-3-yl]methyl]pyrrolidine-2-carboxamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
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C23H35ClN4O2
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