Using CCOC(=O)c1ccc(Oc2ncccc2C2=CCN(C(=O)OC(C)(C)C)CC2)cc1 to produce CCOC(=O)c1ccc(Oc2ncccc2C2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.