Using CC(C)(C)c1ccc(C(=O)NCCc2ccc(Cl)c(Cl)c2)nc1 to produce CC(C)(C)c1ccc(CNCCc2ccc(Cl)c(Cl)c2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.