You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-[6-ethoxy-3-(4-methylphenyl)-1-benzofuran-5-yl]-1-[4-(pyridin-4-ylmethyl)piperazin-1-yl]but-2-en-1-one into its molecular formula.
user
C31H33N3O3
assistant