You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[4-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]piperazin-1-yl]-2-(2,3,6-trimethylphenoxy)ethanone is given. What is its corresponding molecular formula?
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C19H26N4O3
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