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 (7S)-7-[2-(difluoromethoxy)phenyl]-5-(3,4-difluorophenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine is given. What is its corresponding molecular formula?
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C18H12F4N4O
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