You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-[4-methyl-3-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl]-2,3-dihydroisoindol-1-one into its molecular formula.
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C18H15N3O2
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