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-[[(1R)-1-(2,4-difluorophenyl)ethyl]amino]-2-oxoethyl] 2-(4-methoxyphenyl)acetate is given. What is its corresponding molecular formula?
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C19H19F2NO4
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