Using Oc1cccc2c1c1cccc3c1n2C(c1ccccc1)CO3, ClCCCCBr to produce ClCCCCOc1cccc2c1c1cccc3c1n2C(c1ccccc1)CO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.