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 N-[2-(2,4-dichloroanilino)-2-oxoethyl]-1-methyl-2-oxo-N-propylpyridine-4-carboxamide using the IUPAC nomenclature.
user
C18H19Cl2N3O3
assistant