Using CCOC(=O)CC(=O)C(=O)OCC, NNc1ccc(C(F)(F)F)cc1 to produce CCOC(=O)c1cc(O)n(-c2ccc(C(F)(F)F)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.