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 (E)-N-[(2S)-2-(dimethylamino)-3-(4-hydroxyphenyl)propyl]-3-[3-(trifluoromethyl)phenyl]prop-2-enamide ?
user
C21H23F3N2O2
assistant