Using CN1C(=O)Cc2cc(Br)c(C#N)cc21, OB(O)c1cccnc1 to produce CN1C(=O)Cc2cc(-c3cccnc3)c(C#N)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.