You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 5-[3-[2-[4-(difluoromethoxy)-3-methylphenyl]ethynyl]phenyl]pyrimidine;1-[4-(difluoromethoxy)-3-methylphenyl]-2-(3-pyrimidin-5-ylphenyl)ethane-1,2-dione ?
user
C40H28F4N4O4
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