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 N-[2-(2-chlorophenyl)-2-methoxyethyl]-N'-(1-methylsulfonyl-3,4-dihydro-2H-quinolin-7-yl)oxamide ?
user
C21H24ClN3O5S
assistant