Using CCOC(=O)C1CN(c2ccc(OC)c(OC)c2)CCC1NC(=O)OC(C)(C)C to produce COc1ccc(N2CCC(NC(=O)OC(C)(C)C)C(C(=O)O)C2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.