Using COCCCOc1cc(C[C@@H](CO)C(C)C)ccc1OC, O=C1CCC(=O)N1Br to produce COCCCOc1cc(C[C@@H](CBr)C(C)C)ccc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.