Using CC(C)(C)OC(=O)NCCC=O, CC(C)C(N)c1nc2nccnc2c(=O)n1Cc1ccccc1 to produce CC(C)C(NCCCNC(=O)OC(C)(C)C)c1nc2nccnc2c(=O)n1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.