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 [1,1,1,2,2-pentafluoro-5-methyl-4-[[(2R)-2-methyl-1-[(2S)-3-methyl-2-(3-pyridin-3-ylpropanoylamino)butanoyl]pyrrolidin-1-ium-1-carbonyl]amino]hex-3-en-3-yl] acetate .
user
C28H38F5N4O5+
assistant