Using Cc1ccccc1, C=CCC(C)C[C@@H](NC(=O)OC(C)(C)C)C1C=CC(=O)O1 to produce C=CCC(C)C[C@@H](NC(=O)OC(C)(C)C)C1CC(C)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.