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 4-[[2-bromo-4-[2-(tert-butylamino)-2-oxoethoxy]-5-methoxyphenyl]methylamino]-2-chlorobenzoic acid .
user
C21H24BrClN2O5
assistant