You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (2S)-1-[(2S)-2-[(1R)-1-fluoro-2-(hydroxyamino)-2-oxoethyl]hexanoyl]-N-(5-phenyl-3H-thiadiazol-2-yl)pyrrolidine-2-carboxamide is given. What is its corresponding molecular formula?
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C21H28FN5O4S
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