Using CC(Cc1nc(-c2ccccc2)nc2ccccc12)C(=O)O, CCNCC to produce CCN(CC)C(=O)C(C)Cc1nc(-c2ccccc2)nc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.