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 methyl (3S,3'S,4'S)-4'-(3-bromophenyl)-3'-[(2,5-dimethylphenyl)methyl]-1'-methyl-2-oxospiro[1H-indole-3,2'-pyrrolidine]-3'-carboxylate .
user
C29H29BrN2O3
assistant