You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 2-amino-3-[[3-[4-(4-methoxyphenyl)-2-oxobutyl]phenyl]methyl]-5-methyl-5-(2-methylpropyl)imidazol-4-one ?
user
C26H33N3O3
assistant