Using CCCI, O=C1CC[C@@H]2c3ccc(Cl)cc3CC[C@H]2N1 to produce CCCN1C(=O)CC[C@@H]2c3ccc(Cl)cc3CC[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.