You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[(1S,4S)-2-azabicyclo[2.2.1]heptan-5-yl]-2-(6-hydroxy-2,7-dimethylindazol-5-yl)pyrido[4,3-d]pyrimidin-5-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22N6O2
assistant