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 ethyl 2-[5-phenyl-2-sulfanylidene-7-(trifluoromethyl)-3H-1,4-benzodiazepin-1-yl]acetate is given. What is its corresponding molecular formula?
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C20H17F3N2O2S
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