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 4-[[(3aS,7aS)-1,3-dioxo-3a,4,7,7a-tetrahydroisoindol-2-yl]methyl]benzonitrile .
user
C16H14N2O2
assistant