You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-ethoxyethyl (4R)-6-methyl-2-oxo-4-(3,4,5-trimethoxyphenyl)-3,4-dihydro-1H-pyrimidine-5-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H26N2O7
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