Using Clc1nc(Cl)nc(Cl)n1, CCC(C)NCCN1CC(C)(C)NC(C)(C)C1=O to produce CCC(C)N(CCN1CC(C)(C)NC(C)(C)C1=O)c1nc(Cl)nc(Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.