You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N'-[(2S)-1-[(2'S,3R)-2'-cyano-2-oxospiro[1H-indole-3,4'-pyrrolidine]-1'-yl]-4,4-dimethyl-1-oxopentan-2-yl]-N-(2,6-dimethylphenyl)-N'-methyloxamide into its molecular formula.
user
C30H35N5O4
assistant