Using C[C@@](O)(C(=O)Nc1ccc(S(=O)c2ccc(O)cc2)cc1Cl)C(F)(F)F, OCCCBr to produce C[C@@](O)(C(=O)Nc1ccc(S(=O)c2ccc(OCCCO)cc2)cc1Cl)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.