You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N'-methyl-N-[(1-methylsulfonylpiperidin-4-yl)methyl]-4-(2-oxo-2-piperidin-1-ylethyl)piperazine-1-carboximidamide using the IUPAC nomenclature.
user
C20H38N6O3S
assistant