You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2S)-5-(2-fluorophenyl)-2-[[(2S)-5-(2-fluorophenyl)-2-(phosphonomethylamino)pent-4-ynoyl]amino]pent-4-ynoic acid ?
user
C23H21F2N2O6P
assistant