Using CCOC(=O)CC(c1ccccc1)c1c[nH]c2cc(O)ccc12, OCCCBr to produce CCOC(=O)CC(c1ccccc1)c1c[nH]c2cc(OCCCO)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.