Using COC(=O)c1ccc(NC(=O)c2ccc(C(C)(C)C)cc2)c(NC(=O)c2ccc(OC)cc2)c1 to produce COc1ccc(C(=O)Nc2cc(C(=O)O)ccc2NC(=O)c2ccc(C(C)(C)C)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.