You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-methyl-7-[4-[(2E)-2-(1,3,3-trimethylindol-2-ylidene)ethyl]piperazin-1-yl]-[1,2,4]triazolo[1,5-a]pyrimidine into molecular formula.
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C23H29N7
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