Using COc1cc(-n2ccc(C)n2)ccc1C(=O)N1Cc2cccn2Cc2ccccc21 to produce COc1cc(-n2ccc(C)n2)ccc1C(=O)N1Cc2ccc(CN(C)C)n2Cc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.