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 3-[[5-[5-methyl-3-(oxolan-3-ylamino)pyridin-2-yl]-1,3,4-oxadiazol-2-yl]amino]-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one is given. What is its corresponding molecular formula?
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C27H25N7O3
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