You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(4R)-2,2-dimethyloxan-4-yl]-4-(6-methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H25N5O3
assistant