Using CCOC(=O)C1(NC(=O)C(NC(=O)OC(C)(C)C)c2cccc(C(F)(F)F)c2)CC1 to produce CCOC(=O)C1(NC(=O)C(N)c2cccc(C(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.