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 (2S)-2-[(2,6-dichlorophenyl)methyl-[2-(2-fluorophenyl)acetyl]amino]-N-ethyl-3-phenylpropanamide .
user
C26H25Cl2FN2O2
assistant