You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (3R,3'S,4'R,5'S)-4'-(3-bromo-5-methoxy-4-prop-2-enoxyphenyl)-5'-methyl-3'-nitrospiro[1H-indole-3,2'-pyrrolidine]-2-one is given. What is its corresponding molecular formula?
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C22H22BrN3O5
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