You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 2-[4-(3-methoxyphenyl)-3-methyl-7-oxo-[1,2]oxazolo[3,4-d]pyridazin-6-yl]-N-(2-methylphenyl)propanamide ?
user
C23H22N4O4
assistant