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-3-oxo-N-[2-(4-sulfamoylphenyl)ethyl]-2,7-diazaspiro[4.5]decane-7-carboximidamide using the IUPAC nomenclature.
user
C18H27N5O3S
assistant