You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-[2-(4-amino-7-ethylpyrrolo[2,3-d]pyrimidin-5-yl)ethynyl]-4-methylphenyl]-3-methylbenzamide into molecular formula.
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C25H23N5O
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