You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[(3S)-3-[4-[5-chloro-2-[4-(difluoromethyl)triazol-1-yl]phenyl]-5-methoxy-2-oxopyridin-1-yl]-2-oxohexyl]-N-methylpyridine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C28H27ClF2N6O4
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