You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 7-[1-(2-methoxy-2-methylpropanoyl)piperidin-4-yl]-1,3-dimethyl-5-(trifluoromethyl)pyrido[2,3-d]pyrimidine-2,4-dione using the IUPAC nomenclature.
user
C20H25F3N4O4
assistant