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 4-[(Z)-[1-butyl-1'-(3-morpholin-4-ylpropyl)-2,4',5'-trioxospiro[indole-3,2'-pyrrolidine]-3'-ylidene]-hydroxymethyl]-N,N-dimethylbenzenesulfonamide .
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C31H38N4O7S
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