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