You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[(1R)-2-[N-ethyl-4-[[(2R)-2-(methylamino)-2-phenylethyl]amino]anilino]-1-hydroxyethyl]-8-hydroxy-1H-quinolin-2-one into molecular formula.
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C28H32N4O3
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