You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2-deuterio-1,1,1-trifluoropropan-2-yl) 4-tert-butyl-2,2,3,3,5,6,6-heptadeuteriopiperazine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C12H21F3N2O2
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