You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(1,2-benzoxazol-3-yl)-N-[2-(5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-2-yl)phenyl]acetamide into molecular formula.
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C22H20N4O2
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