Using O=C(Cl)c1cc(Br)ccc1Cl, O=C(N1CCOc2ccccc21)C(F)(F)F to produce O=C(c1ccc2c(c1)N(C(=O)C(F)(F)F)CCO2)c1cc(Br)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.