You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2R)-3-(3-chlorophenyl)-1'-methyl-1,1-dioxospiro[1,3-thiazolidine-2,3'-indole]-2',4-dione into molecular formula.
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C17H13ClN2O4S
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