You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-(5-methoxypyridin-3-yl)-1,7-naphthyridin-6-yl]-2-(4-methylpiperazin-1-yl)pyridine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H25N7O2
assistant