You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-1-[3-(4-chlorophenyl)-5-[(1S)-1-hydroxyethyl]-1,2-oxazole-4-carbonyl]pyrrolidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
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C17H18ClN3O4
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