You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4aS,8aS)-4-(1,3-benzodioxol-5-ylmethyl)-2,3,4a,5,6,7,8,8a-octahydro-1H-quinoxaline .
user
C16H22N2O2
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