Using CI, COC(=O)CCc1c(-c2ccc(Cl)cc2)[nH]c2ncc(Cl)cc12 to produce COC(=O)CCc1c(-c2ccc(Cl)cc2)n(C)c2ncc(Cl)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.