You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-1-methylpyrazol-4-yl]-N-methyl-N-[(4-methyl-1,2,5-oxadiazol-3-yl)methyl]methanamine into molecular formula.
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C18H21N5O3
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