Using COC(=O)c1ccc(N)c(N)c1, ClCC=Cc1ccc(Cl)cc1 to produce COC(=O)c1ccc(N)c(NCC=Cc2ccc(Cl)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.