Using CC(C)(C)C(=O)Nc1ccc(-c2cc(=O)c3c(NC(=O)C(C)(C)C)c(F)cc(F)c3o2)cc1F to produce Nc1ccc(-c2cc(=O)c3c(N)c(F)cc(F)c3o2)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.