Using COc1cc2ncc(C#N)c(Cl)c2cc1OC, Nc1cc(Br)c(O)c(Br)c1 to produce COc1cc2ncc(C#N)c(Nc3cc(Br)c(O)c(Br)c3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.