Using CCOC(=O)c1c(C)n(C)c(C)c(-c2ccc(Br)cc2)c1=O to produce Cc1c(C(=O)O)c(=O)c(-c2ccc(Br)cc2)c(C)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.