Using CC(C)(C)OC(=O)N(C(=O)OC(C)(C)C)C(N)=Nc1cccc(-c2ncccc2C(=O)O)c1 to produce N=C(N)Nc1cccc(-c2ncccc2C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.