Using CC(=O)CCC(=O)CN1C(=O)c2ccccc2C1=O, NCC(N)=O to produce Cc1ccc(CN2C(=O)c3ccccc3C2=O)n1CC(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.