Using ClC(Cl)(Cl)Cl, CC(=O)O[C@@H]1C[C@]2(C)C(=O)CC[C@H]2[C@@H]2[C@H](CCCCCCCCCO)CC3=CC(=O)CC[C@@H]3[C@H]21 to produce CC(=O)O[C@@H]1C[C@]2(C)C(=O)CC[C@H]2[C@@H]2[C@H](CCCCCCCCCCl)CC3=CC(=O)CC[C@@H]3[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.