You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1R,2S)-1'-methyl-2-[3-[(E)-2-(4-piperazin-1-ylphenyl)ethenyl]-1H-indazol-6-yl]spiro[cyclopropane-1,3'-indole]-2'-one into molecular formula.
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C30H29N5O
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