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 7-[4-(2,6-difluorophenyl)sulfonylpiperazin-1-yl]-6-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidine is given. What is its corresponding molecular formula?
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C22H20F2N6O3S
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