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 3-(5-cyano-2,4-dimethyl-6-oxo-1H-pyridin-3-yl)-N-[1-[3-methoxy-4-(pyridin-4-ylmethoxy)phenyl]ethyl]propanamide .
user
C26H28N4O4
assistant