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-[2-(3-but-3-ynyldiazirin-3-yl)ethyl]-2-[1-(4,6-dimethylpyrimidin-2-yl)-3,5-dimethylpyrazol-4-yl]acetamide into molecular formula.
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C20H25N7O
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