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-[2-(3-fluorophenyl)-1,3-thiazol-4-yl]-N-[2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-3-yl)ethyl]acetamide is given. What is its corresponding molecular formula?
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C20H22FN5OS
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