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 1-cyclopropyl-3-(2,6-dichloro-3,5-dimethoxyphenyl)-7-[2-(2-oxobut-3-enyl)anilino]-4H-pyrimido[4,5-d]pyrimidin-2-one using the IUPAC nomenclature.
user
C27H25Cl2N5O4
assistant