Using COB(OC)OC, CC(C)(C)OC(=O)N1CCN(Cc2cccc(Br)c2)CC1 to produce CC(C)(C)OC(=O)N1CCN(Cc2cccc(B(O)O)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.