Using CC(C)c1cc(Cc2c(Cl)cc(CBr)cc2Cl)n[nH]c1=O, [C-]#N to produce CC(C)c1cc(Cc2c(Cl)cc(CC#N)cc2Cl)n[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.