Using COB(OC)OC, COc1cc(-c2ncc(C)o2)cc(OCc2ccccc2)c1Br to produce COc1cc(-c2ncc(C)o2)cc(OCc2ccccc2)c1B(O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.