You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-methylphenyl)sulfonyl-N-[2-oxo-2-(1,3-thiazol-2-ylamino)ethyl]pyrrolidine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H20N4O4S2
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