You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(4-methoxyphenyl)methyl]-1-methyl-2,4-dioxopyrido[3,4-d]pyrimidine-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H16N4O4
assistant