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 (2R)-2-[[2-(2-bromo-4-chlorophenoxy)acetyl]-[(3,4-dichlorophenyl)methyl]amino]-N-ethyl-3-phenylpropanamide ?
user
C26H24BrCl3N2O3
assistant