Using CC(C)(C)OC(=O)Nc1nc(Br)ns1, OB(O)c1ccc2[nH]ccc2c1 to produce CC(C)(C)OC(=O)Nc1nc(-c2ccc3[nH]ccc3c2)ns1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.