You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[4-(4-amino-2-methyl-5-propan-2-yloxyphenyl)piperidin-1-yl]-3-(dimethylamino)propan-1-one into its molecular formula.
user
C20H33N3O2
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