You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[1-(2-fluorophenyl)ethylamino]-N-[4-(3,4,5,6-tetrahydro-2H-azepin-7-ylsulfamoyl)phenyl]acetamide into its molecular formula.
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C22H27FN4O3S
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