You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance ethyl (2S)-2-[[(2S)-2-[[(2S)-2-amino-6-[[2,2-difluoro-2-[(2R,3R,4S,5R,6R)-2,3,4,5-tetrahydroxy-6-(hydroxymethyl)oxan-2-yl]acetyl]amino]hexanoyl]amino]propanoyl]amino]propanoate .
user
C22H38F2N4O11
assistant