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 [[4-[2-[(6-acetamido-1-amino-1-oxohexan-2-yl)carbamoyl]-4-oxopentyl]phenyl]-difluoromethyl]phosphonic acid .
user
C21H30F2N3O7P
assistant