Using CCBr, COC(=O)c1ccc(-n2nc(-c3c(Cl)cccc3Cl)[nH]c2=O)cc1OC to produce CCn1c(-c2c(Cl)cccc2Cl)nn(-c2ccc(C(=O)OC)c(OC)c2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.