Using COB(OC)OC, CC1(C)c2ccccc2-c2cc3c4cc(Br)ccc4n(-c4ccccc4)c3cc21 to produce CC1(C)c2ccccc2-c2cc3c4cc(B(O)O)ccc4n(-c4ccccc4)c3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.