Using COc1cc(N2CCOCC2)cc(F)c1C(=O)NCc1ccc(Cl)cc1 to produce O=C(NCc1ccc(Cl)cc1)c1c(O)cc(N2CCOCC2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.