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 (2S)-N-[1-[2-(3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl)ethyl]imidazol-4-yl]-2-[[2-(3,5-difluorophenyl)acetyl]amino]pentanamide .
user
C27H37F2N5O2
assistant