You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[4-[2-[4-amino-7-(2-methoxypyridin-4-yl)pyrrolo[2,1-f][1,2,4]triazin-5-yl]-2-oxoethyl]cyclohexyl]-4-hydroxy-3,3-dimethylbutan-1-one into molecular formula.
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C26H33N5O4
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