Using CC(=O)N(C)c1ccc(NCC2CCOCC2)c(N)c1, CC(F)(F)C(=O)O to produce CC(=O)N(C)c1ccc(NCC2CCOCC2)c(NC(=O)C(C)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.