You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-(1,3-benzodioxol-5-ylmethyl)-2-[[5-(dimethylsulfamoyl)-1,3-benzoxazol-2-yl]sulfanyl]-N-ethylacetamide into molecular formula.
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C21H23N3O6S2
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