You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 1-benzyl-3-[2-methyl-3-oxo-4-(1,2,3,4-tetrahydronaphthalen-1-yl)-5H-1,4-benzoxazepin-7-yl]urea into its molecular formula.
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C28H29N3O3
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