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 3-(4-fluorophenyl)-2-[[(2R)-3-methoxy-3-[(2S)-1-[(5S)-3-methoxy-5-methyl-4-[methyl-[(2S)-3-methyl-2-[[(2S)-3-methyl-2-(methylamino)butanoyl]amino]butanoyl]amino]heptanoyl]pyrrolidin-2-yl]-2-methylpropanoyl]amino]propanoic acid .
user
C39H64FN5O8
assistant