Using CCOC(=O)C1(c2ccc(O)cc2)C=CC=CC1, OC(Br)CCCl to produce CCOC(=O)C1(c2ccc(OCCCCl)cc2)C=CC=CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.