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 3-[[6-methoxy-2-[methyl-(1-methylpiperidin-4-yl)amino]quinazolin-4-yl]-methylamino]propanenitrile is given. What is its corresponding molecular formula?
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C20H28N6O
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