You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-(4a-hydroxy-1,3,4,5,6,7,8,8a-octahydroisoquinolin-2-yl)-N-(4-chloro-2-fluorophenyl)acetamide ?
user
C17H22ClFN2O2
assistant