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 ethyl 3-[2-[[amino-(4-methylanilino)methylidene]amino]-4-methyl-6-oxo-1H-pyrimidin-5-yl]propanoate .
user
C18H23N5O3
assistant