You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[1-(5-ethyl-1,2-oxazole-3-carbonyl)piperidin-4-yl]-5-pyridin-3-yl-3-(2-thiophen-2-ylethyl)imidazolidine-2,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
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