Using CC(=O)OC1CCN(C(=O)OC(C)(C)C)c2nc(-c3ccc(C)cc3)c(-c3ccc(C)cc3)nc21 to produce CC(=O)OC1CCNc2nc(-c3ccc(C)cc3)c(-c3ccc(C)cc3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.