Using CCOC(=O)N1C2C=C(c3ccc(Cl)cc3C(=O)CC)CC1CC2 to produce CCOC(=O)N1C2CCC1CC(c1ccc(Cl)cc1C(=O)CC)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.