Using CCOC(=O)C(NC(=O)N1CCOCC1)C(C)(C)c1ccccc1 to produce CC(C)(c1ccccc1)C(NC(=O)N1CCOCC1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.