You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[3-[(E)-[3-(2-fluorophenyl)-2,4-dioxo-1,3-thiazolidin-5-ylidene]methyl]phenoxy]butanoic acid into molecular formula.
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C20H16FNO5S
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