Using COc1ccnc(-c2cc(N=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)ccc2C)c1 to produce COc1ccnc(-c2cc(NC(=N)N)ccc2C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.