You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (E)-3-(3-ethoxy-4-methyl-6,7,8,9-tetrahydrodibenzofuran-2-yl)-N-(3-imidazol-1-ylpropyl)but-2-enamide ?
user
C25H31N3O3
assistant