Using CCOC(=O)C=C1CCN(C(=O)OC(C)(C)C)CC1(F)F to produce CCOC(=O)CC1CCN(C(=O)OC(C)(C)C)CC1(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.