Using Cc1nn(-c2ccccn2)c2c1C(=O)CC(C)(C)C2Br, NO to produce Cc1nn(-c2ccccn2)c2c1C(=NO)CC(C)(C)C2Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.