Using Oc1c(F)c(F)c(F)c(F)c1F, CCCCCCCCOc1ccc(-c2ccc(C(=O)O)cc2)cc1 to produce CCCCCCCCOc1ccc(-c2ccc(C(=O)Oc3c(F)c(F)c(F)c(F)c3F)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.