Using C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1c1nc(-c2ccncn2)cc(=O)n1C to produce C[C@@H]1CNCCN1c1nc(-c2ccncn2)cc(=O)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.