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 (6R,11R)-8-[4-(2-aminoethyl)benzoyl]-11-hydroxy-2,8-diazaspiro[5.5]undecan-1-one;hydrochloride .
user
C18H26ClN3O3
assistant