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-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-2-methyl-3-(5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)guanidine into molecular formula.
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C18H24N6O2
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