You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-[4-[(2-cyclopropyl-1,3-benzoxazol-5-yl)carbamoyl]-2-ethoxyphenoxy]acetic acid is given. What is its corresponding molecular formula?
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C21H20N2O6
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