Using CCOC(=O)C(F)(F)F, CC(C)(C)OC(=O)N1CCCC(=O)C1 to produce CC(C)(C)OC(=O)N1CCC(C(=O)C(F)(F)F)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.