Using CI, COC(OC)c1cc(NC(=O)OC(C)(C)C)cc(C(F)(F)F)c1 to produce COC(OC)c1cc(N(C)C(=O)OC(C)(C)C)cc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.