You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-[6-[[(1R)-1-cyclobutylethyl]amino]-8-[cyclohexyl(methyl)amino]-7-[[4-(trifluoromethyl)phenyl]methyl]purin-2-yl]-4H-1,2,4-oxadiazol-5-one into its molecular formula.
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C28H33F3N8O2
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