Using Nc1nc2c(s1)C(=O)CCC2, CCC(C(=O)O)c1ccccc1 to produce CCC(C(=O)Nc1nc2c(s1)C(=O)CCC2)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.