Using COC(=O)Nc1nc2cc(-c3ccc4c(c3)CN(C(=O)OC(C)(C)C)CCO4)cnc2[nH]1 to produce COC(=O)Nc1nc2ncc(-c3ccc4c(c3)CNCCO4)cc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.