You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[(2R)-2-hydroxy-2-[4-(trifluoromethyl)phenyl]acetyl]amino]-5-methylhex-4-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H19F3N2O3
assistant