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-[(6-fluorospiro[1H-2-benzofuran-3,4'-piperidine]-1'-yl)methyl]-N,N-dimethyl-3-(1,3-thiazol-4-yl)propanamide is given. What is its corresponding molecular formula?
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C21H26FN3O2S
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