You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(6-methoxy-5-methylpyridin-3-yl)-3-(piperidin-4-ylmethoxy)-4,5,7,8-tetrahydrooxepino[4,5-c]pyrazole into its molecular formula.
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C20H28N4O3
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