You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(1-bicyclo[1.1.1]pentanyl)-8-bromo-2-methyl-4-[[(1R)-1-[2-methyl-3-(trifluoromethyl)phenyl]ethyl]amino]pyrido[4,3-d]pyrimidin-7-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H22BrF3N4O
assistant