You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[2-(6-methoxypyridin-3-yl)-3-(piperidin-1-ylmethyl)-1H-pyrrolo[2,3-b]pyridin-5-yl]but-3-yn-1-ol .
user
C23H26N4O2
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