Using O=Cc1ccc(O)c2c1CCCC2, CC(C)(C)OC(=O)NCCCBr to produce CC(C)(C)OC(=O)NCCCOc1ccc(C=O)c2c1CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.