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 1-(1,4-diazabicyclo[2.2.2]octan-2-ylmethyl)-3-[[1-(2-ethoxyethyl)cyclopentyl]methyl]-2-methylguanidine is given. What is its corresponding molecular formula?
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C19H37N5O
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