Using ClCCC(Cl)(Cl)Cl, CC(C)(C)OC(=O)N1CCN(c2c(Cl)cc(O)cc2Cl)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2c(Cl)cc(OCC=C(Cl)Cl)cc2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.