Using CC(C)(C)OC(=O)N1CCC(CN2CCN(S(=O)(=O)c3ccc(C=O)cc3)CC2=O)CC1, ClC(Cl)Cl to produce CC(C)(C)OC(=O)N1CCC(CN2CCN(S(=O)(=O)c3ccc(/C=C/Cl)cc3)CC2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.