Using CC(C)(C)c1ccc(Nc2ncnc3c2CCN(Cc2ccccc2)C3)cc1 to produce CC(C)(C)c1ccc(Nc2ncnc3c2CCNC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.