Using CCOC(=O)C(=O)Nc1c([N+](=O)[O-])cc(Cl)cc1C(F)(F)F, CI to produce CCOC(=O)C(=O)N(C)c1c([N+](=O)[O-])cc(Cl)cc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.