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 2-[[(Z)-2-[(4-bromobenzoyl)amino]-3-(4-chlorophenyl)prop-2-enoyl]amino]acetic acid is given. What is its corresponding molecular formula?
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C18H14BrClN2O4
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