You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2'R,3S,3'S,10'bR)-3'-(3-methoxybenzoyl)-2'-(4-nitrobenzoyl)spiro[1H-indole-3,1'-3,10b-dihydro-2H-pyrrolo[2,1-a]isoquinoline]-2-one .
user
C34H25N3O6
assistant