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 N-[2-oxo-1-[4-[5-[(2-pyridin-3-ylacetyl)amino]-1,3,4-thiadiazol-2-yl]butyl]pyrimidin-4-yl]-2-phenylacetamide is given. What is its corresponding molecular formula?
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C25H25N7O3S
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