You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule ethyl 5-[4-[(2-methyl-1,3-benzoxazol-6-yl)carbamoyl]piperidin-1-yl]sulfonylfuran-2-carboxylate into molecular formula.
user
C21H23N3O7S
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