You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-tert-butyl-9-[3-tert-butyl-4-[6-[2-(2-tert-butyl-4-carbazol-9-yl-6-methylphenyl)pyridin-4-yl]pyridin-2-yl]phenyl]carbazole;3-tert-butyl-9-[4-tert-butyl-3-[6-[2-(2-tert-butyl-4-carbazol-9-ylphenyl)pyridin-4-yl]pyridin-2-yl]phenyl]carbazole;3-tert-butyl-9-[4-tert-butyl-3-[6-[2-[2-tert-butyl-4-(3-phenylcarbazol-9-yl)phenyl]pyridin-4-yl]pyridin-2-yl]phenyl]carbazole;3-tert-butyl-9-[3-tert-butyl-4-[6-[2-[2-tert-butyl-4-(3-pyridin-2-ylcarbazol-9-yl)phenyl]pyridin-4-yl]pyridin-2-yl]phenyl]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C244H225N17
assistant