Using Cc1ccc(Nc2cc(N(C)C)nc(NC(=O)Cc3ccccc3)n2)cc1 to produce Cc1ccc(Nc2cc(N(C)C)nc(NCCc3ccccc3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.