Using Oc1cnc(F)c(Cl)c1, Cc1ccc(OC(=O)c2cc(F)c(F)cc2F)cc1 to produce Cc1ccc(OC(=O)c2cc(F)c(Oc3cnc(F)c(Cl)c3)cc2F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.