Using Oc1ccc(F)c(F)c1, CC(C)(C)OC(=O)N1CCC2C1C(CO)CN2C(=O)OCc1ccccc1 to produce CC(C)(C)OC(=O)N1CCC2C1C(COc1ccc(F)c(F)c1)CN2C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.