Using COc1ccc(CN2C(=O)NC(C[N+](=O)[O-])(C(F)(F)F)c3cc(Br)ccc32)cc1 to produce COc1ccc(CN2C(=O)NC(CN)(C(F)(F)F)c3cc(Br)ccc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.