You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name [1-(2,6-difluoroanilino)-1-oxopropan-2-yl] 2-[(2,2-dimethyl-3H-1-benzofuran-7-yl)oxy]acetate ?
user
C21H21F2NO5
assistant