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 (4R,5S)-5-(2,5-dimethyl-1-pyridin-3-ylpyrrol-3-yl)-1-(3-methoxypropyl)-4-pyridin-2-ylimidazolidine-2-thione is given. What is its corresponding molecular formula?
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C23H27N5OS
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