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 (3aS,7aR)-5-methyl-2-(1-methylbenzimidazol-2-yl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione .
user
C17H17N3O2
assistant