You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[2-[1-[4-(2-fluoro-3-methoxyphenoxy)phenyl]-8-methylimidazo[1,5-a]pyrazin-3-yl]piperidin-1-yl]prop-2-en-1-one into its molecular formula.
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C28H27FN4O3
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