You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3R,5E)-2-(benzenesulfonyl)-3-benzyl-5-[(1-tritylimidazol-4-yl)methylidene]-3,4-dihydro-1H-2-benzazepine-8-carbonitrile into its molecular formula.
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C47H38N4O2S
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