Using COc1ccc(-c2nc(-c3ccc4c(c3)CCN(C(=O)OC(C)(C)C)CC4)no2)cc1C#N to produce COc1ccc(-c2nc(-c3ccc4c(c3)CCNCC4)no2)cc1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.