Using CCOC(=O)/C=C/c1c(C)cccc1OCCCC(=O)OCC, O=C1CCC(=O)N1Br to produce CCOC(=O)/C=C/c1c(CBr)cccc1OCCCC(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.