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)-2-[[(2R,5S)-2-benzyl-4-oxo-5-(3-oxobutanoylamino)-6-phenylhexanoyl]amino]-3-(methylamino)propanoic acid into molecular formula.
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C27H33N3O6
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