Using BrBr, CNC(=O)c1ccc(C)c(Nc2cc(N(C)CC(C)(C)C)ncn2)c1 to produce CNC(=O)c1ccc(C)c(Nc2ncnc(N(C)CC(C)(C)C)c2Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.