Using CC(C)Cn1c(=O)n(C)c(=O)c2c(Br)c(C(O)c3cccnc3)sc21 to produce CC(C)Cn1c(=O)n(C)c(=O)c2c(Br)c(C(=O)c3cccnc3)sc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.