Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, CCc1cc(Cl)cc(N)n1 to produce CCc1cc(Cl)cc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.