Using CC(C)(C)OC(=O)NC[C@H]1CNCCO1, O=C(O)c1ccc(Cl)c(Cl)c1 to produce CC(C)(C)OC(=O)NC[C@H]1CN(C(=O)c2ccc(Cl)c(Cl)c2)CCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.