Using COc1ccc(-c2cc(C)ccn2)cc1N=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C to produce COc1ccc(-c2cc(C)ccn2)cc1NC(=N)N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.