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 1-[(4S,4aR,8aR)-4-hydroxy-4-phenyl-2,3,4a,5,6,7,8,8a-octahydroquinolin-1-yl]-3-phenylbutan-1-one .
user
C25H31NO2
assistant