You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(azetidine-1-carbonyl)-2-methylpyrazol-3-yl]-2-(2-phenyl-5-piperidin-1-ylimidazo[1,2-a]pyridin-7-yl)ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H30N6O2
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