You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,2R,3R,4R)-3-[(3-ethylphenyl)carbamoyl]-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylate into molecular formula.
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C16H16NO4-
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