Using CC(C)(C)CC(=O)Nc1cc(Br)ccc1NCCOC(F)(F)F to produce CC(C)(C)Cc1nc2cc(Br)ccc2n1CCOC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.