You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-ethyl-5-[[4-[2-(5-hydroxy-2,5-dihydro-1,2,4-oxadiazol-3-yl)phenyl]phenyl]methyl]-3-phenyl-6-propylpyrimidin-4-one into molecular formula.
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C30H30N4O3
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