Using CCOC(=O)CN(Cc1ccc(OC)c(OC)c1)C(=O)OC(C)(C)C to produce COc1ccc(CN(CC(=O)O)C(=O)OC(C)(C)C)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.