You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (1S,3R,3aS,6aS)-7'-chloro-5-[2-(3,4-dimethoxyphenyl)ethyl]-1-(1H-indol-3-ylmethyl)spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-1H-indole]-2',4,6-trione into molecular formula.
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C32H29ClN4O5
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