You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [1-[[4-methylsulfonyl-1-[2-[4-(trifluoromethyl)phenyl]acetyl]piperazin-2-yl]methyl]pyrrolidin-3-yl] 2-[4-(trifluoromethyl)phenyl]acetate into molecular formula.
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C28H31F6N3O5S
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