You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-[3,3-difluoro-4-[4-(trifluoromethyl)pyridin-2-yl]oxypyrrolidin-1-yl]-6-(2,4-dimethoxypyrimidin-5-yl)imidazo[1,2-b]pyridazine is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H18F5N7O3
assistant