Using Cc1cc2c(=NOC(C)(C)C)cc(-c3cc4ccccc4cn3)oc2cc1Br to produce Cc1cc2c(=NO)cc(-c3cc4ccccc4cn3)oc2cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.