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 4-[[(1R,5S)-3,8-diazabicyclo[3.2.1]octan-8-yl]methyl]-2-(4-methoxy-2,5-dimethylphenyl)-5-methyl-1,3-oxazole into molecular formula.
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C20H27N3O2
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