Using NC(=O)c1c(F)ccc(O)c1F, ClCc1coc(-c2ccc(Cl)cc2)n1 to produce NC(=O)c1c(F)ccc(OCc2coc(-c3ccc(Cl)cc3)n2)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.