Using COB(OC)OC, CCCCCCCCOc1ccc(-c2ncc(Br)cc2Cl)cc1 to produce CCCCCCCCOc1ccc(-c2ncc(O)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.