You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 6-N-[(4-methoxyphenyl)methyl]-4-N-(5-methyl-1,2-oxazol-3-yl)-5-nitropyrimidine-4,6-diamine .
user
C16H16N6O4
assistant