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-(2,6-dimethylmorpholin-4-yl)-4-(2,4-dimethylphenyl)-1-prop-2-enylpyrrole-2,5-dione .
user
C21H26N2O3
assistant