You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-N-[2-[(2R)-2-(4-benzoyl-1,3-thiazol-2-yl)pyrrolidin-1-yl]-1-cyclohexyl-2-oxoethyl]-2-methylbutanamide by IUPAC nomenclature, provide its molecular formula.
user
C27H35N3O3S
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