You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[2-(4-fluorophenyl)ethylamino]-2-oxoethyl] 5-ethoxy-3-methyl-1-benzofuran-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22FNO5
assistant