Using CCOC(=O)c1ccc(-c2cc(NC(=O)[C@H]3CCCN3C(=O)OC(C)(C)C)ccc2Cl)cc1 to produce CC(C)(C)OC(=O)N1CCC[C@@H]1C(=O)Nc1ccc(Cl)c(-c2ccc(C(=O)O)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.