Using COC(=O)C(C)(C)c1cn2c(=O)n(C(C)(C)C)nc2c(NC(C)C)n1 to produce CC(C)Nc1nc(C(C)(C)C(=O)O)cn2c(=O)n(C(C)(C)C)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.