You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2R)-2-[(3-bromophenyl)methyl-[2-(2,4,5-trichloro-N-methylsulfonylanilino)acetyl]amino]-N-ethyl-3-phenylpropanamide into molecular formula.
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C27H27BrCl3N3O4S
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