You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-2H-quinolin-1-yl]-[(3R)-piperidin-3-yl]methanone .
user
C15H26N2O
assistant