Using CC1(C)CC(N)CC(C)(C)N1, Clc1nc(Cl)nc(Cl)n1 to produce CC1(C)CC(Nc2nc(Cl)nc(NC3CC(C)(C)NC(C)(C)C3)n2)CC(C)(C)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.