You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[5-chloro-2-[(2'-oxospiro[cyclohexane-1,3'-pyrrolo[2,3-c]pyridine]-1'-yl)methyl]benzimidazol-1-yl]butanenitrile into its molecular formula.
user
C24H24ClN5O
assistant