You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(1-cyclopropyl-4-methylpyrrolidin-3-yl)-3-ethyl-2-[[(2R)-1-methylsulfonylpyrrolidin-2-yl]methyl]guanidine into its molecular formula.
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C17H33N5O2S
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