You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-[4-(3,5-dimethoxyanilino)-5-oxo-6H-pyrimido[4,5-d]pyridazin-2-yl]piperidin-4-yl]acetonitrile;2-[1-[5-oxo-4-[4-(trifluoromethoxy)anilino]-6H-pyrimido[4,5-d]pyridazin-2-yl]piperidin-4-yl]acetonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C41H41F3N14O5
assistant