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 (1'S,2S,2'S,4'R)-N-(5-methyl-1,3-thiazol-2-yl)-4-oxospiro[3H-1,3-benzoxazine-2,5'-bicyclo[2.2.2]octane]-2'-carboxamide is given. What is its corresponding molecular formula?
user
C20H21N3O3S
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