Using Cc1cnc(N)c(Br)c1, OB(O)c1ccc(Oc2ccccc2)cc1 to produce Cc1cnc(N)c(-c2ccc(Oc3ccccc3)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.