Using CCOC(=O)c1c(NCCO)c2ccccc2n(-c2ccccc2)c1=O, BrC(Br)(Br)Br to produce CCOC(=O)c1c(NCCBr)c2ccccc2n(-c2ccccc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.