You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[4-[[2-butyl-6-ethyl-5-(2-methyl-2,3-dihydro-1-benzofuran-5-yl)-4-oxopyrimidin-1-yl]methyl]phenyl]benzonitrile into molecular formula.
user
C33H33N3O2
assistant