You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2S)-N-[(2R)-butan-2-yl]-2-[[2-(3-chloro-4-methyl-N-methylsulfonylanilino)acetyl]-(2-phenylethyl)amino]butanamide into molecular formula.
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C26H36ClN3O4S
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