Using CI, COC(=O)c1ccc(N(C)CC2(O)CCN(CCc3ccc(C#N)cc3)CC2)cc1 to produce COC(=O)c1ccc(N(C)CC2(OC)CCN(CCc3ccc(C#N)cc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.