You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[[5-[[(2R)-1-hydroxy-3-methylbutan-2-yl]amino]-2H-triazolo[4,5-d]pyrimidin-7-yl]-methylamino]methyl]benzene-1,2-diol is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H23N7O3
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