Using Cc1c(Cc2ccccc2)c2cc(-c3ccc(O)cc3)ccc2n1C, COC(=O)CBr to produce COC(=O)COc1ccc(-c2ccc3c(c2)c(Cc2ccccc2)c(C)n3C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.