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 ethyl 4-[[(3R,3'S,5'R)-5-chloro-2-oxo-5'-propan-2-ylspiro[1H-indole-3,2'-pyrrolidine]-3'-carbonyl]amino]benzoate .
user
C24H26ClN3O4
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