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 methyl (Z)-3-[[(2R,3S)-2-(4-methoxyphenyl)-1-(4-methylphenyl)-4-oxoazetidin-3-yl]amino]-4-phenoxybut-2-enoate is given. What is its corresponding molecular formula?
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C28H28N2O5
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