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 [4-[(R)-hydroxy-(1-methylimidazol-2-yl)methyl]piperidin-1-yl]-(4-prop-2-ynoxyphenyl)methanone is given. What is its corresponding molecular formula?
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C20H23N3O3
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