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 1-[(3S,4R)-3-hydroxy-4-[(3-methyl-1,2-oxazol-5-yl)methyl]pyrrolidin-1-yl]-2-(2-phenyl-1,3-thiazol-4-yl)ethanone is given. What is its corresponding molecular formula?
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C20H21N3O3S
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