You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-methyl-N-[2-[4-[3-methyl-4-(6-methylpyridin-3-yl)oxyanilino]quinazolin-5-yl]oxypropyl]-2-pyrrolidin-1-ylacetamide by IUPAC nomenclature, provide its molecular formula.
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C31H36N6O3
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