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 2-[5-chloro-4-[3-(oxan-4-ylmethylamino)phenyl]pyridin-2-yl]-1-[(3R)-1-(2,2,2-trifluoroethyl)piperidin-3-yl]ethanone .
user
C26H31ClF3N3O2
assistant