You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [4-[(3aR,4S,7R,7aR)-1,3-dioxo-3a,4,7,7a-tetrahydro-4,7-epoxyisoindol-2-yl]phenyl] acetate into molecular formula.
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C16H13NO5
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