Using O=c1cc(-c2ccc3c(c2)OCO3)cc(-c2ccccc2)[nH]1, CCOC(=O)C(C)CCCCBr to produce CCOC(=O)C(C)CCCCOc1cc(-c2ccc3c(c2)OCO3)cc(-c2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.