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 3-(cyclobutylmethyl)-4-[2-[2-[3-(cyclobutylmethyl)morpholin-4-yl]ethylsulfonyl]ethyl]morpholine .
user
C22H40N2O4S
assistant