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 (3R)-1,3-dimethyl-3-[1-[[2-[2-(2-oxopyrrolidin-1-yl)ethoxy]phenyl]methyl]piperidin-4-yl]azepan-2-one .
user
C26H39N3O3
assistant