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 2-[(2R)-6-amino-2-[[(2R)-2-[[(2R)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-5-methylhexanoyl]amino]hexanoyl]-5,5-difluoro-N-methyl-2,7-diazaspiro[3.5]nonane-7-carboxamide .
user
C40H58F2N8O5
assistant