You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3S)-6-[2,6-di(propan-2-yl)phenyl]-3-propan-2-yl-3,5-dihydro-2H-imidazo[5,1-b][1,3]oxazole into molecular formula.
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C20H30N2O
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