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 N-[[5-(furan-2-ylmethyl)-4,6,7,8-tetrahydrotriazolo[1,5-a][1,4]diazepin-3-yl]methyl]pyrimidin-2-amine into molecular formula.
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C16H19N7O
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