You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule N-[4-[[4-[(3aR,7aR)-5-methyl-1,3-dioxo-3a,4,7,7a-tetrahydroisoindol-2-yl]benzoyl]amino]phenyl]-4-methylbenzamide ?
user
C30H27N3O4
assistant