You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(6aS)-5,11-dioxo-6aH-isoindolo[2,1-a]quinazolin-6-yl]-N-[(1R)-2,3,4,9-tetrahydro-1H-carbazol-1-yl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H26N4O3
assistant