Using CC(C)Oc1cc(NC(=O)CC(CCCl)C(F)(F)F)c(F)cc1Cl to produce CC(C)Oc1cc(N2CCC(C(F)(F)F)CC2=O)c(F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.