You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R,4S)-1-[(3S,6R)-5-amino-4,6-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3-(hydroxymethyl)-2-oxa-7-azabicyclo[4.1.0]heptane-4,5-diol into its molecular formula.
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C12H22N2O9
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