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 (2R)-2-amino-1-[4-(1-methylpiperidin-4-yl)piperidin-1-yl]-3-phenylpropan-1-one;hydrochloride .
user
C20H32ClN3O
assistant