Using CSc1sc(C(=N)NC(=O)OC(C)(C)C)cc1S(=O)(=O)c1cccc(Br)c1, COB(OC)OC to produce CSc1sc(C(=N)NC(=O)OC(C)(C)C)cc1S(=O)(=O)c1cccc(B(O)O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.