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 N-[(2S,4S)-1-[(1R,5S)-3-bicyclo[3.3.1]nonanyl]-2-propylpiperidin-4-yl]-N-phenylpropanamide .
user
C26H40N2O
assistant