Using C[C@]12C=CC(=O)C=C1CC[C@H]1[C@@H]3C[C@@H](OCC(=O)c4ccccc4)[C@](O)(C(=O)CO)[C@@]3(C)C[C@H](Cl)[C@@]12Cl, [Cl-] to produce C[C@]12C=CC(=O)C=C1CC[C@H]1[C@@H]3C[C@@H](OCC(=O)c4ccccc4)[C@](O)(C(=O)CCl)[C@@]3(C)C[C@H](Cl)[C@@]12Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.