You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[[4-(2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-4-yl)phenyl]methyl]-5-methylpyridin-2-amine;ethane into its molecular formula.
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C22H26N4
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