Using O, C[C@H]1C=CC2=C[C@@H](O)C[C@H](OC(=O)CC(C)(C)C)[C@@H]2[C@H]1CC[C@@H]1C[C@@H](O)CC(=O)O1 to produce C[C@H]1C=CC2=C[C@@H](O)C[C@H](OC(=O)CC(C)(C)C)[C@@H]2[C@H]1CC[C@@H](O)C[C@@H](O)CC(=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.