You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2,3,3,4,4,4-heptafluoro-1-[1-[4-[5-(2,2,3,3,4,4,4-heptafluorobutanoyl)-4,4-dimethyl-2,3-dihydropyridin-1-yl]phenyl]-4,4-dimethyl-2,3-dihydropyridin-5-yl]butan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H26F14N2O2
assistant